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Best Selling Genuine Replacement O2 Sensors

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Motorcraft
1999 Ford Econoline Super Duty Oxygen Sensor Motorcraft

P311-5DCB5A4    W0133-1698991  New

Qty:
$43.32
Motorcraft Oxygen Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Optional
Brand: Motorcraft
This Product is Eligible for Free Ground Shipping
Additional Fitment Information:
Vehicle
1999 - Ford Econoline Super Duty
Motorcraft
1996 Ford E-350 Econoline Oxygen Sensor Motorcraft

P311-5DCB5A4    W0133-1698991  New

Qty:
$43.32
Motorcraft Oxygen Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Optional with 15" Pigtail Connector
Brand: Motorcraft
This Product is Eligible for Free Ground Shipping
Additional Fitment Information:
Vehicle
1996 - Ford E-350 Econoline
Motorcraft
1999 Ford E-350 Super Duty Oxygen Sensor Motorcraft

P311-5DCB5A4    W0133-1698991  New

Qty:
$43.32
Motorcraft Oxygen Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Optional
    with Part Marked F88F 9F472-BA
Brand: Motorcraft
This Product is Eligible for Free Ground Shipping
Additional Fitment Information:
Vehicle
1999 - Ford E-350 Super Duty
Motorcraft
1996 Ford F Super Duty Oxygen Sensor Motorcraft

P311-5DCB5A4    W0133-1698991  New

Qty:
$43.32
Motorcraft Oxygen Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Except California Emissions System
Brand: Motorcraft
This Product is Eligible for Free Ground Shipping
Additional Fitment Information:
Vehicle
1996 - Ford F Super Duty
Motorcraft
1996 Ford F Super Duty Oxygen Sensor Motorcraft

P311-5DCB5A4    W0133-1698991  New

Qty:
$43.32
Motorcraft Oxygen Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • with California Emissions System
Brand: Motorcraft
This Product is Eligible for Free Ground Shipping
Additional Fitment Information:
Vehicle
1996 - Ford F Super Duty
Motorcraft
1997 Ford F-250 HD Oxygen Sensor Motorcraft

P311-5DCB5A4    W0133-1698991  New

Qty:
$43.32
Motorcraft Oxygen Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • with California Emissions System

    with 15" Pigtail

    Driver Side
Brand: Motorcraft
This Product is Eligible for Free Ground Shipping
Additional Fitment Information:
Vehicle
1997 - Ford F-250 HD
Motorcraft
1996 Ford Taurus Oxygen Sensor Motorcraft

P311-5DCB5A4    W0133-1698991  New

Qty:
$43.32
Motorcraft Oxygen Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • with Part Marked F48F9F472BC or F48F9F472BD
Brand: Motorcraft
This Product is Eligible for Free Ground Shipping
Additional Fitment Information:
Vehicle
1996 - Ford Taurus
Motorcraft
1996 Ford E-350 Econoline Club Wagon Oxygen Sensor Motorcraft

P311-5DCB5A4    W0133-1698991  New

Qty:
$43.32
Motorcraft Oxygen Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • with 15" Pigtail Connector
Brand: Motorcraft
This Product is Eligible for Free Ground Shipping
Additional Fitment Information:
Vehicle
1996 - Ford E-350 Econoline Club Wagon
Motorcraft
1997 Ford F-350 Oxygen Sensor Motorcraft

P311-5DCB5A4    W0133-1698991  New

Qty:
$43.32
Motorcraft Oxygen Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • with California Emissions System

    Driver Side
Brand: Motorcraft
This Product is Eligible for Free Ground Shipping
Additional Fitment Information:
Vehicle
1997 - Ford F-350
Motorcraft
1998 Ford Ranger Oxygen Sensor Motorcraft

P311-5DCB5A4    W0133-1698991  New

Qty:
$43.32
Motorcraft Oxygen Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • with Part Marked F78Z 9F472-BA
Brand: Motorcraft
This Product is Eligible for Free Ground Shipping
Additional Fitment Information:
Vehicle
1998 - Ford Ranger
Motorcraft
1998 Ford Ranger Oxygen Sensor Motorcraft

P311-5DCB5A4    W0133-1698991  New

Qty:
$43.32
Motorcraft Oxygen Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Passenger Side
Brand: Motorcraft
This Product is Eligible for Free Ground Shipping
Additional Fitment Information:
Vehicle
1998 - Ford Ranger
Motorcraft
1999 Ford Ranger Oxygen Sensor Motorcraft

P311-5DCB5A4    W0133-1698991  New

Qty:
$43.32
Motorcraft Oxygen Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • with Part Marked F88F9F472BA
Brand: Motorcraft
This Product is Eligible for Free Ground Shipping
Additional Fitment Information:
Vehicle
1999 - Ford Ranger
Motorcraft
1999 Ford Ranger Oxygen Sensor Motorcraft

P311-5DCB5A4    W0133-1698991  New

Qty:
$43.32
Motorcraft Oxygen Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Passenger Side

    with Part Marked F88F9F472BA
Brand: Motorcraft
This Product is Eligible for Free Ground Shipping
Additional Fitment Information:
Vehicle
1999 - Ford Ranger
Delphi
2004 Mazda RX-8 Oxygen Sensor Delphi

P311-1EC2ACB    W0133-1836719  New

Qty:
$170.00
Delphi Oxygen Sensor
  • Located in Main Catalyst
  • After Catalyst
  • - After Catalyst
  • Rear
Brand: Delphi
Free Ground Shipping on this item
Additional Fitment Information:
Vehicle
2004 - Mazda RX-8
Motorcraft
2003 Ford Explorer Sport Trac Oxygen Sensor Motorcraft

P311-1986426    W0133-1702669  New

Qty:
$44.04
Motorcraft Oxygen Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Front
Brand: Motorcraft
This Product is Eligible for Free Ground Shipping
Additional Fitment Information:
Vehicle
2003 - Ford Explorer Sport Trac
Motorcraft
2007 Ford Ranger Oxygen Sensor Motorcraft

P311-1986426    W0133-1702669  New

Qty:
$44.04
Motorcraft Oxygen Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Driver Side
  • Front
Brand: Motorcraft
This Product is Eligible for Free Ground Shipping
Additional Fitment Information:
Vehicle
2007 - Ford Ranger
Bosch
2007 Mercedes-Benz E320 Oxygen Sensor Bosch

P311-0ED3AFF    W0133-1941999  New

Qty:
$156.43
Bosch Oxygen Sensor
Brand: Bosch
Free Ground Shipping on this item
Additional Fitment Information:
Vehicle
2007 - Mercedes-Benz E320
Delphi
2005 Volkswagen Phaeton Oxygen Sensor Delphi

P311-50B8426    W0133-1768890  New

Qty:
$130.82
Delphi Oxygen Sensor
  • Forward Exhaust Manifold
Brand: Delphi
Free Ground Shipping on this item
Additional Fitment Information:
Vehicle
2005 - Volkswagen Phaeton
Bosch
1988 Daihatsu Charade Oxygen Sensor Bosch

P311-162577D    W0133-1626692  New

Qty:
$17.81
Bosch Oxygen Sensor
  • Universal - w/o Connector
Brand: Bosch
This Product is Eligible for Free Ground Shipping
Additional Fitment Information:
Vehicle
1988 - Daihatsu Charade
Bosch
1989 Sterling 827 Oxygen Sensor Bosch

P311-162577D    W0133-1626692  New

Qty:
$17.81
Bosch Oxygen Sensor
  • Universal, w/o connector
Brand: Bosch
This Product is Eligible for Free Ground Shipping
Additional Fitment Information:
Vehicle
1989 - Sterling 827

Latest O2 Sensor Repair and Installation Advice

CarJunky AutoAdvice

96 Corolla: PO133 O2 Sensor

Showing 2 out of 9 Posts | Show 7 Hidden Posts
Question From rabbitrun on 96 Corolla: PO133 O2 Sensor

1996 Toyota Corolla, 4 cyl, 1.8 L, 132,500 mileage:
• Started up car last night & malfunction indicator light (ie check engine light) came on.
• Gas cap on snug (whooshing sound when removed); coolant full; oil & filter change done every 3k (last one 2460 miles ago); no evidence of oil leaks; probably burning oil as it was low a quart of oil
• Corolla had more than normal engine vibration 2 days ago; do not see same vibration now; repairman said extra vibration could have been caused when O2 sensor started acting up
• Free OBD diagnosis at parts store today was P0133 (Pre-converter oxygen sensor circuit slow response fault, Bank 1, Sensor 1, under hood near exhaust manifold)
• Repairman told me it’s safe to drive around as long as check engine light is solid & not blinking (blinking indicates serious problem like engine misfire; & car must be stopped & towed)
• Understand this could be faulty O2 sensor ($90 aftermarket to $173 OEM if I replace it), frayed/broken wiring to sensor, exhaust leak, or other----how to test if pre-converter O2 sensor needs to be replaced? If buy aftermarket, need to know if this sensor is upstream rather than downstream, heated rather than unheated, & 2 wire rather than 4 wire?
• Would like to get more use out of the car since I spent a pile of money on 120k maintenance 4 months ago (timing belt, drive belts, spark plugs, water pump, engine oil seals; air filter; antifreeze, oil & filter changed, & brake system flushed) ----but need to know if it’s time to cut my losses & trade in for newer used car?
• Or would you recommend clearing the code (by pulling 15A EFI fuse under the hood or removing negative battery cable or clearing w/ scan tool), & just wait to see if the light comes back on before taking it into the shop?
• Or would you recommend taking to shop to run diagnostic alone at $105 (1 hr labor to pull code, check how sensor is behaving, check for exhaust leaks, etc.); or pay $305 to run diagnostic & replace O2 sensor if that’s the problem?

Response From zmame

Oxygen sensors only have certain life span.. When they get worn out they tend not to respond as fast as they did new.. If that's the only code then I would replace the O2. It would be nice to get on a scanner so you could monitor the switching to confirm %100 that this is your issue.

Response From rabbitrun

re: 96 Toyota Corolla DX 4 door 7AFE motor w/ 132,700 miles; 120k maintenance done 4 months ago & 13,720 miles ago:

thank you zmame. so if i buy an aftermarket O2 sensor for $100, what if it's something else like frayed/broken wiring to sensor, exhaust leak, or other?

if i buy aftermarket O2 sensor, aftermarket parts shop said i need to know if sensor is upstream rather than downstream, heated rather than unheated, & 2 or 4 wire? can you help with answers to these questions? toyota parts shop did not know answers to these questions for oem O2 sensor. p0133 in Haynes Manual shows code is pre-converter O2 sensor curicuit slow response fault---does that mean it is upstream? i saw the sensor near the exhaust manifold under the hood.

thanks!

Response From zmame

I doubt its frayed wire it would throw a different code. It would be heated sensor and it will be the upstream O2 (befor the converter).. just look and see how many wires are coming out of the O2. should be 4 if it's heated.1

Response From rabbitrun

zmame, w/ engine on, I crawled along both sides of car from front to end of muffler looking for any smoke & didnt see any except from the muffler tail pipe----how is an exhaust leak checked out?

if there were also problems with the O2 sensor down by the catalytic converter---would it show a separate code on the OBD tester?

pulled off electrical tape & see there are 2 wires. the plastic casing on the white wire is cracked in 1 spot like it got knicked in the past. would it make sense to pull out 15A EFI fuse & see if check engine light comes right back on before a mechanic looks at it (if i take it to a mechanic)?


so if it's 2 wire pre-converter OBD P0133 code, then i need an aftermarket O2 sensor that is 2 wire, unheated, upstream?

Response From zmame

You will need a 2 wire heated O2 sensor upstream.. A un-heated only has 1 wire coming from O2.. If there is a problem with down stream O2 it will set a separate code.. the rear O2 (downstream) dosen't switch all it does is make sure the converter is working properly. You don't need to pull the EFI fuse since its not even related to the O2 sensors.. I would replace the upstream O2 if you fell comfortable doing so.

Exhaust leaks are checked by someone holding rags on tail pipe at idle while you listen and look for leaks.. Black trail of soot is often a indication of a leak. there will be small holes in your resonator and or muffler so they can drain. a exhaust leak between the manifold and cat is the only thing that would affect upstream O2 reading.

Response From rabbitrun

re:1996 Toyota Corolla, 4 cyl, 1.8 L, 7AFE motor, 132,500 mileage:

zmame: today while driving on the freeway & then a side road 14 miles into the trip the check engine light went off & stayed off. i stopped by auto shop who checked it w/ obd scanner & even though the light has stayed off, it still read P0133 trouble code. with engine light going off & staying off but still reading code would you still change out O2 sensor?

preconverter O2 sensor is 2 wire so wouldn't it be an unheated, upstream 2 wire O2 converter?

the parts shop (not toyota dealership parts) has O2 sensor that is OE & another that is a universal----should I stick with the non Toyota parts shop OE ($90 for OE style) O2 sensor or is this something that i need to get from the toyota parts shop ($173 for OEM)?

i mentioned pulling the 15a EFI fuse only cause Haynes manual tells me that's best way to clear the codes.

if a rag is stuffed in the tailpipe, will it show an exhaust leak between the manifold and catalyst, or only a leak from the cat to the tailpipe?


thanks!

Response From zmame

It is heated.. Go with OE, not universal.. Yes it would basically your adding pressure to the whole system.. if there was any amount of leakage that would cause bad reading you would notice it. The light will probably go on and off until it's replaced.. The computer will hold history codes or pending codes until it acts up again.

Response From rabbitrun Top Rated Answer


Downstream O2 sensors work?

Showing 5 out of 33 Posts | Show 28 Hidden Posts
Question From jfls45 on Downstream O2 sensors work?

2002 Dodge Dakota, 3.9L V6, 109K Miles

Downstream O2 Sensor questions
I ran a OBD Scan program from my netbook today and observed the following:
Can someone who knows how O2 sensors work explain which downstream sensor is working correctly, see the attached photo.
This photo shows the O2 sensors after the vehicle has been warmed up to normal operating temp. The downstream are the two on the bottom.


Response From Hammer Time

Are we sure this truck even has 4 sensors. Everything I'm seeing says it only has one downstream sensor unless it's California. The poster is in PA.

Response From jfls45

I'm curious to why you say everything says there isn't 4 sensors, did you look at the photo in original post. you can clearly see 4 sensors.


it's a 02 Dakota 3.9L V6, has the two mini-cats, an upstream and downstream on each mini-cat, these two pipes come together and go into the main cat. then to the muffler... the photo I provided clearly shows 4 sensors if you look at the title window above each sensor. now we got that cleared up, yes i ran the vehicle for long time, its is my daily driver, i run it back and forth to work everyday, 16 miles to work one way, so it is getting heated up. but not thrown one code.

I appreciate all of your help and will hook laptop back up soon and log about 20 minutes worth of driving to post up here to look at.

thanks

Response From Hammer Time

No, what i see is a window that shows 4 graphs that are labeled as 4 different sensors which doesn't mean much of anything. Unless this is a California emissions certified vehicle, it only has one downstream sensor.

Response From jfls45

I tried to copy and paste data stream from excel file but it jumbled all together. is there a way to attach an excel file to this?

Response From Hammer Time

It doesn't apply the line returns when you do that but you can go back in and edit them in. I was trying to do that for you when you deleted the content.

Response From jfls45

this data is idling with the pvc hose unplugged, creating a vacuum leak.

32:03.1 Malfunction Indicator Lamp (MIL) Status 0
32:03.2 Number of Emission-Related DTCs 0
32:03.3 Misfire Monitoring Support 1
32:03.4 Fuel System Monitoring Support 1
32:03.5 Comprehensive Component Monitoring Support 1
32:03.6 Misfire Monitoring Completed 1
32:03.7 Fuel System Monitoring Completed 1
32:03.8 Comprehensive Component Monitoring Completed 1
32:03.9 Catalyst Monitoring Support 1
32:04.0 Heated Catalyst Monitoring Support 0
32:04.1 Evaporative System Monitoring Support 1
32:04.2 Secondary Air System Monitoring Support 0
32:04.3 A/C System Refrigerant Monitoring Support 0
32:04.4 Oxygen Sensor Monitoring Support 1
32:04.5 Oxygen Sensor Heater Monitoring Support 1
32:04.6 EGR System Monitoring Support 0
32:04.7 Catalyst Monitoring Completed 1
32:04.8 Heated Catalyst Monitoring Completed 1
32:04.9 Evaporative System Monitoring Completed 1
32:05.1 Secondary Air System Monitoring Completed 1
32:05.1 A/C System Refrigerant Monitoring Completed 1
32:05.2 Oxygen Sensor Monitoring Completed 1
32:05.3 Oxygen Sensor Heater Monitoring Completed 1
32:05.4 EGR System Monitoring Completed 1
32:05.5 Calculated Engine Load 5.882352941 %
32:05.6 Engine Coolant Temperature 199.4 F
32:06.1 Intake Manifold Absolute Pressure 4.496169878 psi
32:06.3 Engine RPM 991.5 rpm
32:06.3 Vehicle Speed Sensor 0 mph
32:06.4 Ignition Timing Advance for #1 Cylinder 10.5
32:06.5 Intake Air Temperature 158 F
32:06.6 Throttle Position 11.37254902 %
32:06.7 Oxygen Sensor Present (Bank 1 Sensor 1) 1
32:06.8 Oxygen Sensor Present (Bank 1 Sensor 2) 1
32:06.9 Oxygen Sensor Present (Bank 2 Sensor 1) 1
32:07.0 Oxygen Sensor Present (Bank 2 Sensor 2) 1
32:07.1 Oxygen Sensor Voltage (Bank 1 Sensor 1) 0.28 V
32:07.2 O2 Sensor Short Term Fuel Trim (Bank 1 Sensor 1) 2.34375 %
32:07.3 Oxygen Sensor Voltage (Bank 1 Sensor 2) 0.76 V
32:07.4 O2 Sensor Short Term Fuel Trim (Bank 1 Sensor 2) 0 %
32:07.5 Oxygen Sensor Voltage (Bank 2 Sensor 1) 0.84 V
32:07.6 O2 Sensor Short Term Fuel Trim (Bank 2 Sensor 1) -2.34375 %
32:07.7 Oxygen Sensor Voltage (Bank 2 Sensor 2) 0.82 V
32:07.8 O2 Sensor Short Term Fuel Trim (Bank 2 Sensor 2) 0 %
32:07.9 Malfunction Indicator Lamp (MIL) Status 0
32:08.0 Number of Emission-Related DTCs 0
32:08.1 Misfire Monitoring Support 1
32:08.2 Fuel System Monitoring Support 1
32:08.3 Comprehensive Component Monitoring Support 1
32:08.4 Misfire Monitoring Completed 1
32:08.5 Fuel System Monitoring Completed 1
32:08.6 Comprehensive Component Monitoring Completed 1
32:08.7 Catalyst Monitoring Support 1
32:08.9 Heated Catalyst Monitoring Support 0
32:09.0 Evaporative System Monitoring Support 1
32:09.1 Secondary Air System Monitoring Support 0
32:09.2 A/C System Refrigerant Monitoring Support 0
32:09.3 Oxygen Sensor Monitoring Support 1
32:09.4 Oxygen Sensor Heater Monitoring Support 1
32:09.5 EGR System Monitoring Support 0
32:09.6 Catalyst Monitoring Completed 1
32:09.7 Heated Catalyst Monitoring Completed 1
32:09.8 Evaporative System Monitoring Completed 1
32:09.9 Secondary Air System Monitoring Completed 1
32:10.0 A/C System Refrigerant Monitoring Completed 1
32:10.2 Oxygen Sensor Monitoring Completed 1
32:10.2 Oxygen Sensor Heater Monitoring Completed 1
32:10.3 EGR System Monitoring Completed 1
32:10.4 Calculated Engine Load 5.882352941 %
32:10.5 Engine Coolant Temperature 199.4 F
32:11.0 Intake Manifold Absolute Pressure 4.35113214 psi
32:11.1 Engine RPM 984.75 rpm
32:11.2 Vehicle Speed Sensor 0 mph
32:11.3 Ignition Timing Advance for #1 Cylinder 8
32:11.4 Intake Air Temperature 159.8 F
32:11.6 Throttle Position 11.37254902 %
32:11.6 Oxygen Sensor Present (Bank 1 Sensor 1) 1
32:11.7 Oxygen Sensor Present (Bank 1 Sensor 2) 1
32:11.9 Oxygen Sensor Present (Bank 2 Sensor 1) 1
32:11.9 Oxygen Sensor Present (Bank 2 Sensor 2) 1
32:12.0 Oxygen Sensor Voltage (Bank 1 Sensor 1) 0.6 V
32:12.1 O2 Sensor Short Term Fuel Trim (Bank 1 Sensor 1) -0.78125 %
32:12.2 Oxygen Sensor Voltage (Bank 1 Sensor 2) 0.76 V
32:12.3 O2 Sensor Short Term Fuel Trim (Bank 1 Sensor 2) 0 %
32:12.4 Oxygen Sensor Voltage (Bank 2 Sensor 1) 0.08 V
32:12.6 O2 Sensor Short Term Fuel Trim (Bank 2 Sensor 1) 4.6875 %
32:12.6 Oxygen Sensor Voltage (Bank 2 Sensor 2) 0.12 V
32:12.7 O2 Sensor Short Term Fuel Trim (Bank 2 Sensor 2) 0 %
32:12.8 Malfunction Indicator Lamp (MIL) Status 0
32:12.9 Number of Emission-Related DTCs 0
32:13.0 Misfire Monitoring Support 1
32:13.2 Fuel System Monitoring Support 1
32:13.3 Comprehensive Component Monitoring Support 1
32:13.4 Misfire Monitoring Completed 1
32:13.5 Fuel System Monitoring Completed 1
32:13.6 Comprehensive Component Monitoring Completed 1
32:13.7 Catalyst Monitoring Support 1
32:13.8 Heated Catalyst Monitoring Support 0
32:13.9 Evaporative System Monitoring Support 1
32:14.0 Secondary Air System Monitoring Support 0
32:14.1 A/C System Refrigerant Monitoring Support 0
32:14.2 Oxygen Sensor Monitoring Support 1
32:14.3 Oxygen Sensor Heater Monitoring Support 1
32:14.4 EGR System Monitoring Support 0
32:14.5 Catalyst Monitoring Completed 1
32:14.6 Heated Catalyst Monitoring Completed 1
32:14.7 Evaporative System Monitoring Completed 1
32:14.8 Secondary Air System Monitoring Completed 1
32:14.9 A/C System Refrigerant Monitoring Completed 1
32:15.1 Oxygen Sensor Monitoring Completed 1
32:15.2 Oxygen Sensor Heater Monitoring Completed 1
32:15.3 EGR System Monitoring Completed 1
32:15.3 Calculated Engine Load 5.882352941 %
32:15.4 Engine Coolant Temperature 199.4 F
32:16.0 Intake Manifold Absolute Pressure 4.35113214 psi
32:16.1 Engine RPM 986.75 rpm
32:16.2 Vehicle Speed Sensor 0 mph
32:16.3 Ignition Timing Advance for #1 Cylinder 8.5
32:16.4 Intake Air Temperature 159.8 F
32:16.5 Throttle Position 11.37254902 %
32:16.5 Oxygen Sensor Present (Bank 1 Sensor 1) 1
32:16.7 Oxygen Sensor Present (Bank 1 Sensor 2) 1
32:16.8 Oxygen Sensor Present (Bank 2 Sensor 1) 1
32:16.8 Oxygen Sensor Present (Bank 2 Sensor 2) 1
32:17.0 Oxygen Sensor Voltage (Bank 1 Sensor 1) 0.06 V
32:17.1 O2 Sensor Short Term Fuel Trim (Bank 1 Sensor 1) 4.6875 %
32:17.2 Oxygen Sensor Voltage (Bank 1 Sensor 2) 0.76 V
32:17.3 O2 Sensor Short Term Fuel Trim (Bank 1 Sensor 2) 0 %
32:17.3 Oxygen Sensor Voltage (Bank 2 Sensor 1) 0.8 V
32:17.4 O2 Sensor Short Term Fuel Trim (Bank 2 Sensor 1) -3.125 %
32:17.5 Oxygen Sensor Voltage (Bank 2 Sensor 2) 0.74 V
32:17.6 O2 Sensor Short Term Fuel Trim (Bank 2 Sensor 2) 0 %
32:17.7 Malfunction Indicator Lamp (MIL) Status 0
32:17.8 Number of Emission-Related DTCs 0
32:18.0 Misfire Monitoring Support 1
32:18.0 Fuel System Monitoring Support 1
32:18.2 Comprehensive Component Monitoring Support 1
32:18.3 Misfire Monitoring Completed 1
32:18.4 Fuel System Monitoring Completed 1
32:18.5 Comprehensive Component Monitoring Completed 1
32:18.6 Catalyst Monitoring Support 1
32:18.7 Heated Catalyst Monitoring Support 0
32:18.8 Evaporative System Monitoring Support 1
32:18.9 Secondary Air System Monitoring Support 0
32:19.0 A/C System Refrigerant Monitoring Support 0
32:19.1 Oxygen Sensor Monitoring Support 1
32:19.2 Oxygen Sensor Heater Monitoring Support 1
32:19.4 EGR System Monitoring Support 0
32:19.5 Catalyst Monitoring Completed 1
32:19.6 Heated Catalyst Monitoring Completed 1
32:19.7 Evaporative System Monitoring Completed 1
32:19.8 Secondary Air System Monitoring Completed 1
32:19.9 A/C System Refrigerant Monitoring Completed 1
32:20.0 Oxygen Sensor Monitoring Completed 1
32:20.1 Oxygen Sensor Heater Monitoring Completed 1
32:20.2 EGR System Monitoring Completed 1
32:20.3 Calculated Engine Load 5.882352941 %
32:20.4 Engine Coolant Temperature 199.4 F
32:20.9 Intake Manifold Absolute Pressure 4.35113214 psi
32:21.0 Engine RPM 978.5 rpm
32:21.1 Vehicle Speed Sensor 0 mph
32:21.2 Ignition Timing Advance for #1 Cylinder 7
32:21.3 Intake Air Temperature 159.8 F
32:21.4 Throttle Position 11.37254902 %
32:21.5 Oxygen Sensor Present (Bank 1 Sensor 1) 1
32:21.6 Oxygen Sensor Present (Bank 1 Sensor 2) 1
32:21.8 Oxygen Sensor Present (Bank 2 Sensor 1) 1
32:21.9 Oxygen Sensor Present (Bank 2 Sensor 2) 1
32:22.0 Oxygen Sensor Voltage (Bank 1 Sensor 1) 0.8 V
32:22.1 O2 Sensor Short Term Fuel Trim (Bank 1 Sensor 1) -3.125 %
32:22.2 Oxygen Sensor Voltage (Bank 1 Sensor 2) 0.76 V
32:22.3 O2 Sensor Short Term Fuel Trim (Bank 1 Sensor 2) 0 %
32:22.4 Oxygen Sensor Voltage (Bank 2 Sensor 1) 0.84 V
32:22.5 O2 Sensor Short Term Fuel Trim (Bank 2 Sensor 1) -2.34375 %
32:22.6 Oxygen Sensor Voltage (Bank 2 Sensor 2) 0.78 V
32:22.7 O2 Sensor Short Term Fuel Trim (Bank 2 Sensor 2) 0 %

Response From Hammer Time

Yeah, there is. Don't try to post so much junk.

Response From jfls45

so not only did we argue about how many O2 sensors I really had I pretty much got no useful feedback from anyone on this forum...

and there is a way to change from the Calif emissions to non-calif emissions...

Response From Sidom


I pretty much got no useful feedback from anyone on this forum...
I don't think that is a fair statement at all...... Taking my posts out the picture cuz I'll grant there isn't alot of useful info there, I've gone back thru this thread and see a lot of useful info from the other mods... These guys donate their time and knowledge for free and to come in here and say that is bs. You started this thread completely wrong....Rather than stating the problem you had in the 1st post, up front, you start asking about a system that is going to have nothing to do with the driveability problem you are having.... You come in later and spring that little nugget of info on us. So yea that turned what could've been straight forward problem and answer thread into this twisted mess..... Once again, I'm not talking about myself but you have no clue who you are insulting............

Response From Hammer Time

I'll put you in for a refund if your not happy with the free service.

Response From jfls45 Top Rated Answer

Ill send a bill for my time with posting pics and data.

Response From Hammer Time

The value of that data is a wash. You've got the magic software program so you shouldn't need us anyway............LOL

Response From Discretesignals

I am sitting here looking at generic OBD2 data and nothing really stands out as an indication that something is wrong. Looks like two snap shots were taken at idle with the engine warming up.

You stated the problem your having occurs at when the engine is under load. Your not going to get too much from the OBD2 side if there is a misfire going on. Can't really tell from the vacuum leak you created if the O2 sensor responds or not because we are only seeing one frame of data.


Oops thread got locked...just noticed.

Response From jfls45

18:42.5 Malfunction Indicator Lamp (MIL) Status 0
18:42.6 Number of Emission-Related DTCs 0
18:42.7 Misfire Monitoring Support 1
18:42.8 Fuel System Monitoring Support 1
18:42.9 Comprehensive Component Monitoring Support 1
18:43.0 Misfire Monitoring Completed 1
18:43.1 Fuel System Monitoring Completed 1
18:43.2 Comprehensive Component Monitoring Completed 1
18:43.3 Catalyst Monitoring Support 1
18:43.4 Heated Catalyst Monitoring Support 0
18:43.5 Evaporative System Monitoring Support 1
18:43.6 Secondary Air System Monitoring Support 0
18:43.7 A/C System Refrigerant Monitoring Support 0
18:43.8 Oxygen Sensor Monitoring Support 1
18:43.9 Oxygen Sensor Heater Monitoring Support 1
18:44.0 EGR System Monitoring Support 0
18:44.1 Catalyst Monitoring Completed 1
18:44.2 Heated Catalyst Monitoring Completed 1
18:44.3 Evaporative System Monitoring Completed 1
18:44.4 Secondary Air System Monitoring Completed 1
18:44.5 A/C System Refrigerant Monitoring Completed 1
18:44.6 Oxygen Sensor Monitoring Completed 1
18:44.8 Oxygen Sensor Heater Monitoring Completed 1
18:44.9 EGR System Monitoring Completed 1
18:45.0 Calculated Engine Load 44.70588235 %
18:45.1 Engine Coolant Temperature 197.6 F
18:45.6 Intake Manifold Absolute Pressure 13.63354737 psi
18:45.7 Engine RPM 2562.25 rpm
18:45.8 Vehicle Speed Sensor 32.31130198 mph
18:45.9 Ignition Timing Advance for #1 Cylinder 15.5
18:46.0 Intake Air Temperature 109.4 F
18:46.1 Throttle Position 49.80392157 %
18:46.2 Oxygen Sensor Present (Bank 1 Sensor 1) 1
18:46.3 Oxygen Sensor Present (Bank 1 Sensor 2) 1
18:46.4 Oxygen Sensor Present (Bank 2 Sensor 1) 1
18:46.5 Oxygen Sensor Present (Bank 2 Sensor 2) 1
18:46.6 Oxygen Sensor Voltage (Bank 1 Sensor 1) 0.78 V
18:46.7 O2 Sensor Short Term Fuel Trim (Bank 1 Sensor 1) -2.34375 %
18:46.8 Oxygen Sensor Voltage (Bank 1 Sensor 2) 0.5 V
18:46.9 O2 Sensor Short Term Fuel Trim (Bank 1 Sensor 2) 0 %
18:47.0 Oxygen Sensor Voltage (Bank 2 Sensor 1) 0.72 V
18:47.1 O2 Sensor Short Term Fuel Trim (Bank 2 Sensor 1) -3.125 %
18:47.2 Oxygen Sensor Voltage (Bank 2 Sensor 2) 0.34 V
18:47.3 O2 Sensor Short Term Fuel Trim (Bank 2 Sensor 2) 0 %

Response From jfls45

19:31.7 Malfunction Indicator Lamp (MIL) Status 0
19:32.0 Misfire Monitoring Support 1
19:32.2 Fuel System Monitoring Support 1
19:32.3 Comprehensive Component Monitoring Support 1
19:32.5 Misfire Monitoring Completed 1
19:32.6 Fuel System Monitoring Completed 1
19:32.8 Comprehensive Component Monitoring Completed 1
19:32.9 Catalyst Monitoring Support 1
19:33.1 Oxygen Sensor Monitoring Support 1
19:33.2 Oxygen Sensor Heater Monitoring Support 1
19:33.3 Oxygen Sensor Monitoring Completed 1
19:33.5 Oxygen Sensor Heater Monitoring Completed 1
19:33.6 Calculated Engine Load 4.313725 %
19:33.7 Engine Coolant Temperature 161.6 F
19:34.3 Intake Manifold Absolute Pressure 5.221359 psi
19:34.4 Engine RPM 689 rpm
19:34.5 Vehicle Speed Sensor 0 mph
19:34.6 Ignition Timing Advance for #1 Cylinder 14
19:34.7 Intake Air Temperature 131 F
19:34.9 Throttle Position 11.37255 %
19:35.0 Oxygen Sensor Present (Bank 1 Sensor 1) 1
19:35.1 Oxygen Sensor Present (Bank 1 Sensor 2) 1
19:35.2 Oxygen Sensor Present (Bank 2 Sensor 1) 1
19:35.3 Oxygen Sensor Present (Bank 2 Sensor 2) 1
19:35.4 Oxygen Sensor Voltage (Bank 1 Sensor 1) 0.76 V
19:35.5 O2 Sensor Short Term Fuel Trim (Bank 1 Sensor 1) -3.125 %
19:35.6 Oxygen Sensor Voltage (Bank 1 Sensor 2) 0.16 V
19:35.7 Oxygen Sensor Voltage (Bank 2 Sensor 1) 0.8 V
19:35.8 O2 Sensor Short Term Fuel Trim (Bank 2 Sensor 1) -3.90625 %
19:35.9 Oxygen Sensor Voltage (Bank 2 Sensor 2) 0.82 V

Response From Sidom

Well 16 miles should do it but if your gonna run it to get a datastream, I would make sure at least half of it is at freeway speeds.
Before you take off, check and make sure all the moniters have run or passed.....If the O2 moniter is incomplete, the cat moniter won't run....

We appreciate the pictures to see what you got but......damn dude you didn't have to pull out the tranny for us....

I actually have an 02 Dakota but it's got the small V/8 so we can't get a good baseline from that........

Response From jfls45

Four (4) Sensors.

This is Bank 1 Sensor 2:


This is Bank 2 Sensor 1 and 2:



And yes there is a transmission in it now... these pictures were taken when the tranny was being rebuilt.

Response From Hammer Time


You have California emissions.

Response From Tom Greenleaf

I don't frequent new car dealers but MA and CA have had same specs for many years and says so on window stickers. Can't say for sure but I suspect many auto makers just comply to highest standard for many destinations.

MA + CA have done this for ages,

T

Response From Hammer Time

There are only 2 emissions standards. They are "Federal Compliant" and "California and Federal compliant". There are no cars specifically built for Massachusetts or any other state besides California.

I'm not sure what the whole goal of this thread is. The downstream sensors are Cat monitors only and serve no other purpose. They have no input or control over computer decisions for mixture or anything else. If you are not getting a Cat efficiency code, then none of this really matters at all in terms of engine performance.

You can have a blocked or restricted cat than can effect performance but the readings on B2S2 don't reflect that.

Response From Tom Greenleaf

It's not a different requirement just that it must meet CA standards to be sold here new anyway. I don't think it applies to used vehicles like CA where alterations are or were once required.

Nothing near me but I'll try to find a window sticker on a new car and take a pic.............

Just looked at a '97 of my own. Says underhood meets EPA standards for California and I know that was sold new to upstate, NY??!!

Dunno - that's how things are marked here not a MA sticker but must meet CA standards?

I'll see if I can Google out that confusion............

Tom

Response From jfls45

ok, so I live in PA, the Carfax report says it was originally sold as a corporate vehicle right here in PA. Do you know why it has Calif emissions? and could I redo the exhaust without the mini-cats and have just two sensors? What would I have to do besides the wiring harness, change the computer too or could it be done with dealer programming tool?


What are your suggestions?

Response From Hammer Time

No, you can't change it. It is what it is. It was built with a package to be California compliant and that's the way it will always be.

Response From Sidom

DS is right....There just isn't enough info here to even guess at it...

Under all the right conditions it would look like one cat is bad.....But if you haven't run it long enough to fire off both cats then it could just be a case of one of them being to cold...

You should also check to see if all the moniters have run and passed. If you have any incomplete ones then other ones won't run until they run & pass...

If you have an incomplete O2 moniter then you may have a cat code looming to set as soon as the O2 moniter runs & passes....

Response From Discretesignals

Are you getting a P0430 code because Bank 2 catalyst isn't cleaning the exhaust. What rpm was the engine at?

Bank 1 appears that it is doing something and the cat on that side is working. Bank 2 sensor is working because it is fluctuating. You can tell if Bank 1 is responsive by stabbing the gas pedal a few times to richen up the exhaust and see if the O2 responds.

Response From jfls45

So are you leaning toward the downstream sensor bank 2 sensor 2 (bottom right graph) indicating the mini-catalyc converter is bad? Would this cause stutter or poor performance when running in overdrive and a load on the motor?

Response From Discretesignals

Bank 2 catalyst isn't cleaning because the rear sensor pattern is mimicking the front O2 sensor. The Bank 1 side appears to be working.


Were you driving the vehicle at the time the stuttering was occurring when this snap shot was taken?

You want to resolve your drive-ability problem first before condemning the cat. A cat this isn't cleaning won't necessarily cause a drive-ability problem unless it is plugging up the exhaust.

Does your program have the option of viewing misfire data?

Response From jfls45

it checks to see if the misfire check circuit ran which it does, but i get no codes indicating a misfire.

Response From Discretesignals

There might not be enough misfires occurring to cause the light to come on. The misfire monitor is active, but you might not be able to view current misfire pids with your program.

If the engine feels like it is skipping under load. That is usually caused by ignition secondary issues such as spark plug wires breaking down. How are the plugs, wires, cap, and rotor?

Misfires due to an ignition problem will reek havok with the catalyst because the unburnt fuel from the misfiring will cause the catalyst to overheat if there are enough of them.

Response From jfls45

plugs wires cap and rotor and coil all brand new motor has 109K on it. did compression check all about 180PSI

Response From Discretesignals

What are your long and short term fuel trims for both banks at the time of the stutter and loss of power? Can you snap shot a data list and post it up on here when the problem is occurring?

Response From jfls45

I am getting no codes at all.

o2 sensor

Showing 3 out of 4 Posts | Show 1 Hidden Posts
Question From eyob07 on o2 sensor

Hi there everyone I,m just curious what is the difference between o2 sensor and air fuel ratio sensor.

Response From nickwarner

Some manufacturers call it one thing and some call it another. What matters is if it needs to be replaced. Here's an easy way to tell.

If a professional driveability technician tells you it needs bo be replaced, it does and you should buy a factory sensor if you want the car to run right.

If some kid popping zits behind the counter of Advance Auto Parts just did a free code scan and wants to sell you a bunch of Bosch sensors by saying the code means that is what you need, you don't.

Response From Discretesignals Top Rated Answer

Both air/fuel ratio (wide band) and regular O2 sensor (narrow band) are both called O2 sensors. A narrow band O2 sensor produces its own voltage and a wide band is powered by current from the engine computer.

There is plenty of information on the internet about the different types of O2 sensors and their theory of operation.

Response From Hammer Time

None

O2 sensors very low readings

Showing 2 out of 4 Posts | Show 2 Hidden Posts
Question From cipi64 on O2 sensors very low readings

2002 Mazda MPV ES, 3L, 95K

Engine idles rough, but no significant loss of power during driving (though there is some hesitation accelerating).

All 4 HO2 sensors read very low voltages, never more than 0.2V and pretty steady (no oscillation). There are two banks (one for each side of the V6 motor), one upstream of cat and the other one downstream.
There is noticeable exhaust odor near the front of the car, one mechanic sugested that the front exhaust manifold leaks another pointed at two flexible pipes (under the car). Before i put a couple of thousands in exhaust parts i am trying to understand how is it that these readings can be so low on both banks.

Thanks for your feedback.

O2 voltage chart:

?1342029044

Response From Hammer Time Top Rated Answer

What codes is it setting?

Response From cipi64

I originally had P0134, P0131 and P0151.
I noticed on page 01-02A-68 of the workshop manual that P0131 and P0151 ought to be ignored until P0134 is fixed. Because i disconected the battery as part of other troubleshooting steps all these codes got erased and i haven't seen them back yet.

thanks for looking

Response From Hammer Time

Those are all lean codes which agrees with your findings. The first thing I would look for are vacuum leaks or air leaks in the intake snorkel.

o2 sensor

Showing 2 out of 2 Posts
Question From Guest on o2 sensor

i have replaced both o2 sensors and the on a 2.4 plymouth voyager and the codes still say there bad any ideas.


thanks mike

Response From AutoTech1971 Top Rated Answer

what year is your van and what codes do you have?