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The Following brands are available based on your search.

  • ACDelco
    ACDelco
  • Beck Arnley
    Beck Arnley
  • Delphi
    Delphi
  • Dorman
    Dorman
  • Global Parts
    Global Parts
  • Hitachi
    Hitachi
  • Standard Ignition
    Standard Ignition
  • True Tech
    True Tech
  • Vemo
    Vemo
  • Walker
    Walker

Best Selling Genuine Oldsmobile Throttle Position Sensors

  • We Stock the following top leading brands, including Delphi, Standard Ignition, True Tech, ACDelco, Vemo
  • Constantly Updated Inventory of Oldsmobile Replacement Throttle Position Sensor Parts

Delphi
1992 Oldsmobile Custom Cruiser Throttle Position Sensor 8 Cyl 5.0L Delphi

P311-211C599    SS10425  New

TH42TH , 17106681 , TH191 , EC1032 , 8-17112-404-0 , 8-17106-681-0 , 8171124040 , 5S5040 , 14072 , FE1032 , 17113070 , 5S5036 , 94580175 , TH42 , FE4004 , TPS30 , 213895 , 20121 , 17112679 , TPS112 , 93740914 , EC3310 , 21955 , TPS127 , TPS73 , TPS139 , 14062 , 229920 , TH42T , EC3004 , 213910 , 17112404 , 8171066810 , 141-443 , 329920 , 977-511 , 141443 , 5S5041 , EC3310P , 200-1047 , 200-1046 , 158-0516

Qty:
37.48
Delphi Throttle Position Sensor
  • Throttle Position Sensor
  • 100 years of OE experience, supplier to the world's top automakers, OE Heritage and knowledge built into every aftermarket part.
Brand: Delphi
Additional Fitment Information:
Vehicle Block Engine CID CC
1992 - Oldsmobile Custom Cruiser V 8 Cyl 5.0L 305 -
Delphi
1990 Oldsmobile Cutlass Calais Throttle Position Sensor 4 Cyl 2.3L Delphi

P311-53D2E6B    SS10459  New

141439 , TPS60 , 319072 , 8170876550 , EC1044 , FE1044 , FE4012 , TH27 , 213894 , 141-439 , 219072 , 5S5008 , EC3012P , 8-17083-333-0 , 17087655 , 8-17106-680-0 , 7793544 , TH51 , 14060 , TPS121 , 17106680 , 8171066800 , TH51T , FE1009 , 8170833330 , EC1009 , 8-17087-655-0 , FE-1009 , 158-0617 , 200-1077 , 779-3544 , EC3012

Qty:
38.42
Delphi Throttle Position Sensor
  • Throttle Position Sensor
  • 100 years of OE experience, supplier to the world's top automakers, OE Heritage and knowledge built into every aftermarket part.
Brand: Delphi
Additional Fitment Information:
Vehicle Block Engine CID CC
1990 - Oldsmobile Cutlass Calais L 4 Cyl 2.3L 140 -
Delphi
1999 Oldsmobile Alero Throttle Position Sensor Delphi

P311-1D36E22    SS10382  New

977-030 , 17123852 , 219187 , EC3048 , 8171135780 , FE4048 , 141-457 , 17113578 , 8171238520 , 8-17113-578-0 , TH149 , 141467 , TPS161 , 8-17123-852-0 , 17106809 , 14130 , 5S5064 , 5S5049 , 200-1053 , TH149T , TPS140 , 319187 , EC3048P , 213912 , 260022 , 158-1365 , 141457 , 141-467

Qty:
42.47
Delphi Throttle Position Sensor
  • Throttle Position Sensor
  • 100 years of OE experience, supplier to the world's top automakers, OE Heritage and knowledge built into every aftermarket part.
Brand: Delphi
Additional Fitment Information:
Vehicle
1999 - Oldsmobile Alero
Delphi
1993 Oldsmobile Achieva Throttle Position Sensor 6 Cyl 3.3L Delphi

P311-21465DA    SS10313  New

14073 , 200-1048 , TH113 , 319185 , 24502965 , 3520 , FE4046 , 141448 , 5S5050 , EC3046P , 219185 , EC3046 , 213915 , TPS135 , 141-448

Qty:
74.55
Delphi Throttle Position Sensor
  • Throttle Position Sensor
  • 100 years of OE experience, supplier to the world's top automakers, OE Heritage and knowledge built into every aftermarket part.
Brand: Delphi
Additional Fitment Information:
Vehicle Block Engine CID CC
1993 - Oldsmobile Achieva V 6 Cyl 3.3L 204 -
Delphi
1997 Oldsmobile 88 Throttle Position Sensor Delphi

P311-0CB9782    SS10509  New

319184 , 3521 , TH159T , 219184 , 213916 , 24504798 , 14093 , 200-1083 , 141-461 , FE4045 , EC3045 , 141461 , TPS144 , 5S5052 , TH159

Qty:
61.76
Delphi Throttle Position Sensor
  • Throttle Position Sensor
  • 100 years of OE experience, supplier to the world's top automakers, OE Heritage and knowledge built into every aftermarket part.
Brand: Delphi
Additional Fitment Information:
Vehicle Submodel
1997 - Oldsmobile 88 Royale
Delphi
1995 Oldsmobile Achieva Throttle Position Sensor 4 Cyl 2.3L Delphi

P311-17C9DCB    SS10465  New

8-17125-483-0 , 141458 , 17125483 , 141-458 , 141-459 , TH153 , EC3048P , 141459 , EC3048 , TPS142 , TH149T , 213914 , 5S5042 , TPS140 , 200-1053 , 14095 , 8171254830 , TH149 , 319187 , EC3183 , 17123855 , 216650 , 219187 , EC3047 , FE4047

Qty:
37.04
Delphi Throttle Position Sensor
  • Throttle Position Sensor
  • 100 years of OE experience, supplier to the world's top automakers, OE Heritage and knowledge built into every aftermarket part.
Brand: Delphi
Additional Fitment Information:
Vehicle Block Engine CID CC
1995 - Oldsmobile Achieva L 4 Cyl 2.3L 138 -
Standard Ignition
2003 Oldsmobile Alero Throttle Position Sensor 6 Cyl 3.4L Standard Ignition

P311-3C8B26C    TH149  New

TPS142 , TPS140VC , 601-52211 , 38131 , SS10467 , 14130 , 141-457 , 5S5042 , 213-914 , SS10382-11B1 , 141-471 , 71-7544 , TPS140 , 141-458 , 71-7537 , 71-7560 , 71-7559 , 17125483 , 14095 , 200-91053 , 8171238520 , 17106809 , 38135 , 5S5049 , 853678T , SS10382 , 213-1653 , TPS161 , 213-2718 , 71-7550 , 8-17125-483-0 , 977-030 , 17113578 , EC3048 , MC1415 , 200-1053 , 213-912 , 17113625 , 75435 , 5S5064 , TPS162 , 213-913 , 141-459 , SS10465 , 3857487-7 , 17123855 , 88893282 , 6J7 , 88864359 , V51-72-0077 , 7270 , 213-4668 , 9-33702 , 17123852 , 89054614 , 8-17123-852-0 , 2-99037 , SS10463 , 2-99040 , SS10532 , 3857487

Qty:
39.12
Standard Ignition Throttle Position Sensor
  • Throttle Position Sensor
  • Product Attributes:
    • Connector Gender: Female
    • Connector Quantity: 1
    • Terminal Gender: Male
    • Terminal Quantity: 3
    • Terminal Type: Blade Terminals
  • Our Throttle Position sensors are made by implementing a proprietary sliding contact technology, based on multiple precious metal contacts riding on polymer thick film resisters to offer a longer working life than competitor sensors on the market today. Each of our sensors is provided with integral rotor bearings and return springs which allow for easy installation when compared to the spring-less designs currently available in the aftermarket, which rely on worn throttle body bearings and return springs to set the correct output voltage. Our sensors maintain specific installed outputs to match the OE rather than using adjustable, consolidated designs. Engine management systems require reliable connections in order for sensors to reach the optimum performance level. We manufacture our sensors to ensure that both external and internal connections remain reliable in order to maintain these requirements through the product life. Each sensor that we offer endures rigorous end of line testing which involves many thousands of data points to validate output voltages and to ensure that each part meets linearity specifications that are expected by the engine management system in your vehicle.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle Block Engine CID CC
2003 - Oldsmobile Alero V 6 Cyl 3.4L 207 -
Standard Ignition
1993 Oldsmobile Silhouette Throttle Position Sensor 6 Cyl 3.1L Standard Ignition

P311-5899F17    TH42  New

9-33701 , TPS4213 , 93740916 , SS10425 , SS10425-11B1 , 805226A1 , 18-7630 , 71-7531 , 71-7934 , 601-0511 , 5J7 , 8-17106-681-0 , 141-443 , 3855184-2 , 158-1389 , 8171066810 , 141-444 , 7266 , 38011 , TPS112 , 17106681 , 17112404 , TPS129 , 5S7657 , 200-1047 , 3855184 , 93740914 , EC3310 , 17111815 , 5S5040 , 17112679 , 14062 , 17112688 , 5S5036 , 2-9960 , 977-511 , 158-0516 , 17087653 , 14072 , TPS112VC , 200-91047 , 213-895 , 17113070 , TH0033 , TPS139 , 71-7535 , 213-910

Qty:
37.82
Standard Ignition Throttle Position Sensor
  • Throttle Position Sensor
  • Product Attributes:
    • Connector Gender: Female
    • Connector Quantity: 1
    • Terminal Gender: Male
    • Terminal Quantity: 3
  • Our Throttle Position Sensors maintain specific installed outputs to match OE rather than adjustable consolidated designs. Circuits are printed on flexible polyimide film or ceramic-based substrates for excellent dimensional stability preventing electrical performance drift. Noble palladium/gold/platinum alloys provide low contact resistance for extended service life. Each TPS uses integral rotor bearings and return springs for easy installation. Each sensor undergoes rigorous end-of-line testing with thousands of data points to validate output voltages for optimum performance and trouble-free operation. Featuring the broadest sensor coverage in the market, we meet the service professionals needs with the highest quality product every time he opens the box. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle Block Engine CID CC
1993 - Oldsmobile Silhouette V 6 Cyl 3.1L 189 -
Standard Ignition
1991 Oldsmobile Bravada Throttle Position Sensor 6 Cyl 4.3L Standard Ignition

P311-5899F17    TH42  New

9-33701 , TPS4213 , 93740916 , SS10425 , SS10425-11B1 , 805226A1 , 18-7630 , 71-7531 , 71-7934 , 601-0511 , 5J7 , 8-17106-681-0 , 141-443 , 3855184-2 , 158-1389 , 8171066810 , 141-444 , 7266 , 38011 , TPS112 , 17106681 , 17112404 , TPS129 , 5S7657 , 200-1047 , 3855184 , 93740914 , EC3310 , 17111815 , 5S5040 , 17112679 , 14062 , 17112688 , 5S5036 , 2-9960 , 977-511 , 158-0516 , 17087653 , 14072 , TPS112VC , 200-91047 , 213-895 , 17113070 , TH0033 , TPS139 , 71-7535 , 213-910

Qty:
37.82
Standard Ignition Throttle Position Sensor
  • Throttle Position Sensor
  • ; 6 Term.
  • Product Attributes:
    • Connector Gender: Female
    • Connector Quantity: 1
    • Terminal Gender: Male
    • Terminal Quantity: 3
  • Our Throttle Position Sensors maintain specific installed outputs to match OE rather than adjustable consolidated designs. Circuits are printed on flexible polyimide film or ceramic-based substrates for excellent dimensional stability preventing electrical performance drift. Noble palladium/gold/platinum alloys provide low contact resistance for extended service life. Each TPS uses integral rotor bearings and return springs for easy installation. Each sensor undergoes rigorous end-of-line testing with thousands of data points to validate output voltages for optimum performance and trouble-free operation. Featuring the broadest sensor coverage in the market, we meet the service professionals needs with the highest quality product every time he opens the box. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle Block Engine CID CC
1991 - Oldsmobile Bravada V 6 Cyl 4.3L 262 -
Standard Ignition
1992 Oldsmobile Cutlass Supreme Throttle Position Sensor 6 Cyl 3.1L Standard Ignition

P311-2941401    TH51  New

141-439 , 977-513 , 71-7500 , 17106680 , 2-9959 , EC3012 , 17087655 , 213-894 , 8-17106-680-0 , 8170833330 , SS10459 , 8-17087-655-0 , 200-1077 , 5S5008 , TPS121VC , 8-17083-333-0 , 158-0617 , 8-17087655-0 , 601-0513 , 6J3 , 17112714 , TH0010 , 200-91077 , V40-72-0319 , 38020 , 17083333 , TPS121 , 14060

Qty:
38.08
Standard Ignition Throttle Position Sensor
  • Throttle Position Sensor
  • Product Attributes:
    • Connector Gender: Female
    • Connector Quantity: 1
    • Terminal Gender: Male
    • Terminal Quantity: 3
  • Our Throttle Position Sensors maintain specific installed outputs to match OE rather than adjustable consolidated designs. Circuits are printed on flexible polyimide film or ceramic-based substrates for excellent dimensional stability preventing electrical performance drift. Noble palladium/gold/platinum alloys provide low contact resistance for extended service life. Each TPS uses integral rotor bearings and return springs for easy installation. Each sensor undergoes rigorous end-of-line testing with thousands of data points to validate output voltages for optimum performance and trouble-free operation. Featuring the broadest sensor coverage in the market, we meet the service professionals needs with the highest quality product every time he opens the box. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle Engine VIN Block Engine CID CC
1992 - Oldsmobile Cutlass Supreme T V 6 Cyl 3.1L 189 -
True Tech
1999 Oldsmobile Bravada Throttle Position Sensor 6 Cyl 4.3L True Tech

P311-0F33F70    TH149T  New

88864359 , 38131 , 17106809 , 213-2718 , 71-7537 , SS10467 , 213-4668 , TPS162 , 17123852 , 71-7550 , 17123855 , 200-1053 , 5S5049 , 2-99037 , TPS161 , 88893282 , 71-7559 , 213-913 , 601-52211 , 17113625 , SS10382 , 71-7544 , 6J7 , 977-030 , 213-912 , TPS140VC , 141-459 , 213-1653 , V51-72-0077 , 200-91053 , 17125483 , 75435 , SS10532 , 141-458 , 141-457 , 5S5064 , 141-471 , 9-33702 , 38135 , 5S5042 , SS10382-11B1 , SS10465 , 213-914 , 14095 , TPS140 , 17113578 , 7270 , 14130 , TPS142 , 2-99040 , 71-7560 , SS10463 , 89054614

Qty:
29.86
True Tech Throttle Position Sensor
  • Throttle Position Sensor
  • Product Attributes:
    • Connector Gender: Female
    • Connector Quantity: 1
    • Terminal Gender: Male
    • Terminal Quantity: 3
    • Terminal Type: Blade Terminals
  • Made from quality components for dependability.
Brand: True Tech
Additional Fitment Information:
Vehicle Block Engine CID CC
1999 - Oldsmobile Bravada V 6 Cyl 4.3L 262 -
True Tech
1991 Oldsmobile Bravada Throttle Position Sensor 6 Cyl 4.3L True Tech

P311-034243C    TH41T  New

5S5068 , 213-3859 , TH0057 , SS10454 , 213-904 , 5J6 , 14061 , 17111471 , 71-7564 , 38010 , 19143600 , 200-1042 , 2-9969 , TPS111 , 141-421

Qty:
43.78
True Tech Throttle Position Sensor
  • Throttle Position Sensor
  • ; with Oval Connector
  • Product Attributes:
    • Color: Black
    • Connector Gender: Male
    • Connector Quantity: 1
    • Connector Shape: Rectangular
    • Gaskets Included: No
    • Terminal Gender: Female
    • Terminal Quantity: 3
    • Terminal Type: Bullet
  • Made from quality components for dependability.
Brand: True Tech
Additional Fitment Information:
Vehicle Block Engine CID CC
1991 - Oldsmobile Bravada V 6 Cyl 4.3L 262 -
True Tech
1992 Oldsmobile Bravada Throttle Position Sensor 6 Cyl 4.3L True Tech

P311-429FEE4    TH42T  New

5J7 , 141-443 , 18-7630 , 17106681 , 158-0516 , TPS139 , 17111815 , 200-1047 , 141-444 , TPS4213 , 213-895 , TPS112 , 71-7531 , 5S5040 , 5S5036 , 977-511 , 17113070 , 71-7535 , 601-0511 , 14062 , TH0033 , 213-910 , 38011 , 17087653 , 2-9960 , 17112679 , 7266 , 5S7657 , 71-7934 , TPS129 , SS10425-11B1 , 158-1389 , TPS112VC , SS10425 , 200-91047 , 9-33701 , 14072

Qty:
28.62
True Tech Throttle Position Sensor
  • Throttle Position Sensor
  • Product Attributes:
    • Connector Gender: Female
    • Connector Quantity: 1
    • Terminal Gender: Male
    • Terminal Quantity: 3
    • Terminal Type: Blade Terminals
  • Made from quality components for dependability.
Brand: True Tech
Additional Fitment Information:
Vehicle Block Engine CID CC
1992 - Oldsmobile Bravada V 6 Cyl 4.3L 262 -
True Tech
1991 Oldsmobile Bravada Throttle Position Sensor 6 Cyl 4.3L True Tech

P311-429FEE4    TH42T  New

5J7 , 141-443 , 18-7630 , 17106681 , 158-0516 , TPS139 , 17111815 , 200-1047 , 141-444 , TPS4213 , 213-895 , TPS112 , 71-7531 , 5S5040 , 5S5036 , 977-511 , 17113070 , 71-7535 , 601-0511 , 14062 , TH0033 , 213-910 , 38011 , 17087653 , 2-9960 , 17112679 , 7266 , 5S7657 , 71-7934 , TPS129 , SS10425-11B1 , 158-1389 , TPS112VC , SS10425 , 200-91047 , 9-33701 , 14072

Qty:
28.62
True Tech Throttle Position Sensor
  • Throttle Position Sensor
  • ; 6 Term.
  • Product Attributes:
    • Connector Gender: Female
    • Connector Quantity: 1
    • Terminal Gender: Male
    • Terminal Quantity: 3
    • Terminal Type: Blade Terminals
  • Made from quality components for dependability.
Brand: True Tech
Additional Fitment Information:
Vehicle Block Engine CID CC
1991 - Oldsmobile Bravada V 6 Cyl 4.3L 262 -
True Tech
1991 Oldsmobile Cutlass Supreme Throttle Position Sensor 6 Cyl 3.1L True Tech

P311-1C2EDFA    TH51T  New

V40-72-0319 , 17106680 , 38020 , 200-1077 , 17087655 , 141-439 , TPS121 , 200-91077 , 601-0513 , 6J3 , TH0010 , 213-894 , 17083333 , 5S5008 , SS10459 , 158-0617 , 71-7500 , 2-9959 , 14060 , 17112714 , 977-513 , TPS121VC

Qty:
23.93
True Tech Throttle Position Sensor
  • Throttle Position Sensor
  • Product Attributes:
    • Connector Gender: Female
    • Connector Quantity: 1
    • Terminal Gender: Male
    • Terminal Quantity: 3
    • Terminal Type: Blade Terminals
  • Made from quality components for dependability.
Brand: True Tech
Additional Fitment Information:
Vehicle Transmission Block Engine CID CC
1991 - Oldsmobile Cutlass Supreme Automatic V 6 Cyl 3.1L 189 -
ACDelco
1991 Oldsmobile Cutlass Ciera Throttle Position Sensor 4 Cyl 2.5L ACDelco

P311-245BB8C    W0133-1682458  New

Qty:
111.09
ACDelco Throttle Position 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.
  • Genuine GM
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
1991 - Oldsmobile Cutlass Ciera L 4 Cyl 2.5L 151 2474
Delphi
2001 Oldsmobile Alero Throttle Position Sensor 6 Cyl 3.4L Delphi

P311-4753C02    W0133-1681893  New

Qty:
69.99
Delphi Throttle Position 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.
Brand: Delphi
Additional Fitment Information:
Vehicle Block Engine CID CC
2001 - Oldsmobile Alero V 6 Cyl 3.4L 207 -
ACDelco
2000 Oldsmobile Alero Throttle Position Sensor 6 Cyl 3.4L ACDelco

P311-0D66D23    W0133-1681893  New

Qty:
85.14
ACDelco Throttle Position 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.
  • Genuine GM
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2000 - Oldsmobile Alero V 6 Cyl 3.4L 207 -
Vemo
1993 Oldsmobile Silhouette Throttle Position Sensor 6 Cyl 3.1L Vemo

P311-5673755    W0133-1682855  New

Qty:
22.65
Vemo Throttle Position Sensor
Brand: Vemo
Additional Fitment Information:
Vehicle Block Engine CID CC
1993 - Oldsmobile Silhouette V 6 Cyl 3.1L 189 -
ACDelco
1990 Oldsmobile Cutlass Calais Throttle Position Sensor ACDelco

P311-54BF612    W0133-1682595  New

Qty:
165.00
ACDelco Throttle Position 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.
  • Genuine GM
Brand: ACDelco
Additional Fitment Information:
Vehicle Engine VIN
1990 - Oldsmobile Cutlass Calais N

Latest Car Advice

CarJunky AutoAdvice

4.3 Vortec rough running and/or rich running

Showing 7 out of 9 Posts | Show 2 Hidden Posts
Question From Dale_3rd on 4.3 Vortec rough running and/or rich running

Hello all,

1994
Oldsmobile
Bravada
4.3 Vortec
125,000+ miles haven't looked at it in a while

As noted, I have an Olds Bravada, 94', that is running very rich. I've replaced the fuel pressure regulator, which was leaking but it still didn't fix the issue. I also replaced the plugs, wires, distributor cap and rotor button. Still runs rough and is hard to start when hot, seems to start okay when cold. I bought a OBD scanner, it returned 22, throttle position sensor signal voltage low and 34 MAP sensor low voltage during ignition on. I replaced the TPS as it was the first in the list, but that didn't fix it either. I then checked the TPS voltages, good ground (read 12.28V and about 35 ohms), also had 5.02V for the 5V reference. I cleared the computer and the error codes still exist and it still runs poorly. I also now have the issue of high RPM and late shifting. Any ideas where to look now? I don't want to throw another $50 at a MAP sensor and it not be the problem.

Thanks everyone.

Response From Discretesignals

When you did the regulator, did you also do the nylon fuel lines that connect to the injector? Those where known for cracking and leaking under the intake causing the engine to run really rich, fouling out plugs, and possibly fouling out the O2 sensor. If the sensor is fouled, you'll have to replace it.

fuel line kit:

Response From Dale_3rd Top Rated Answer

I replaced the "spider" I think it was called several years ago and the "nut kit" I think they called it. When I replaced the fuel pressure regulator the fuel line side was dirty, not showing any signs of leaks, nor did I see drips when I turned the key on to bring the fuel system up to pressure. The vehicle has been running rich for quite some time as I wasn't able to get the truck into my parents garage to attempt repairs. The truck only gets weekend use, to and from my parents house, so it also wasn't a priority to repair. :(

Response From Discretesignals

Need to measure the voltages on the three wires for the TPS first. You have to back probe the TPS sensor connector with your meter's black lead connected to battery negative. Don't unplug the TPS connector to take your voltage measurements.

Measure these voltages on these wires for the TPS with key on:

Grey: 5 volts
Blue: between .5-1.0 volt. Voltage goes up steady as you slowly open the throttle to around 4.5 volts at wide open throttle
Black: should be less than 0.3 volts

Take the measurements and let us know what you find out.


Response From Dale_3rd

Grey - 5.02V
Blue - .3V but goes to <0.01V when I move the throttle
Black - essentially 0V (Fluke 189 measures 0.0002V)

The plugs measures all voltages correctly when unhooked from the sensor, from the research I've done. But plugged in I don't get the varying 0.5 to 4.5V indicating that the TPS is working as it should.

Got a bad TPS sensor from the parts store???

Response From Discretesignals

Not necessary to use sensor ground as a reference. I personally always use battery ground unless you are wanting to get a cleaner signal measurement from something like a digital MAF sensor.

If you have no voltage on the signal wire, you either have a bad connection with your back probe, the signal circuit is shorted to ground, or your TPS sensor is defective.

To test the signal circuit to see if it grounded due to a wiring issue, you could unplug the ECM connectors and then use a 12 volt test light connected to battery positive. Probe the blue wire at the TPS connector. If it lights up, the signal circuit is shorted to ground.

Response From Hammer Time

Not necessary to use sensor ground as a reference. I personally always use battery ground unless you are wanting to get a cleaner signal measurement from something like a digital MAF sensor.

And what if the return voltage checks OK but there is an issue with the sensor ground? You wouldn't find it.

Response From Dale_3rd

I retested the connections, verifying that I did indeed have good connections.

Grey - 5.01V
Blue - this time I had .61V to 4.5V smoothly through the range of the throttle
Black - I used this sensor ground for the testing, 0V for this wire to the battery ground and 11.99V for this wire to battery positive.

With the new TPS installed, I get high rpm before shifting out of 1st, but seems to shift smoothly under normal driving conditions, with the old sensor in I get a very rough idle with stalls, but the shifting issue seems to go away.

Response From Hammer Time

To measure that properly you really should be using the black wire for a ground when measuring the blue wire.

1995 Oldsmobile 88 3.8L no start no codes

Showing 5 out of 5 Posts
Question From bobgee on 1995 Oldsmobile 88 3.8L no start no codes

1995
Oldsmobile
88
3.8L
122,000mi

Was driving down the freeway when all of a sudden I lost power . Was able to make it back home ok, but it died once at a stop sign.
It ran very rough and sluggish, at idle or under power.
It also seems to be getting worse. A few days after I got it home, I was able to start it again, but it would still run very rough. The other day though, it would barely keep running at all. Now it won't even start, just cranks.
car is showing no codes.
When I put the key to on, I can hear the fuel pump pressure up like normal, then it stops.
I did test the throttle position sensor with a multimeter and got good results with a smooth resistance curve across the movement.
I've also checked fuel pressure. It was reading about 47 psi.
I did get spark from a spark plug with an HEI spark tester.
When this test is good, it should indicate that the crank sensor is good, as well as the ICM. is this safe to say?

I'm getting odd results from the Noid lights connected to to the injector wires. I'm using the standard kit from Autozone rental. With multimeter I get 12v from each set of injector wires. The noid light does not light, however. When measuring the voltage with the noid light connected, the voltage drops to only a few millivolts. Upon cranking, there are no flashes from the noid light. There was 1 flash however, when I turned the key to on....but it's only done this once. One page I read said that noid lights may not light in all applications. Anyone have experience with my application and noid lights? or 1995 similar GM's?

So I tried to run it off a can of carb cleaner. It did fire up and run as well as could be expected from a can.
I guess this narrows it down to a fuel injector problem.

is it possible for all injectors to go out at once or will one bad one take all of them out. or is this a sign of whatever controls injector pulse is bad.

Response From Hammer Time

Check all your fuses first and then start testing for a failed ECM by verifying all the power and ground inputs to it.

Does the check engine light come on for bulb check when the key is first turned on?

Response From Discretesignals Top Rated Answer

More than likely the PCM is getting power and some type of ground or else the fuel pump wouldn't come on when the ignition is turned on. Examine your grounds at the transmission bellhousing bolts and make sure they are clean and tight.

Seeing the one pulse when the key was turned on is telling you that the driver is functional, but either isn't being controlled correctly by the PCM's logic, the PCM is in a false clear flood mode, or the PCM isn't receiving the cam or spark reference signals from the ignition control module (ICM). What some people don't understand is that even with the PCM unplugged the ICM will produce sparks and the engine will run on spray.

Your next venture is to get codes read in the PCM and to check for cam and spark reference signal patterns to the PCM using an oscilloscope.

Response From bobgee

thanks for replying.
any tests to verify cam sensor?
check engine light does come on.

Response From Tom Greenleaf

'95 GMs may not pull codes without some dealer help as OBDI+II could be complicating readings on that specific year.

Two engine styles available, I code or K code but probably not relevant. It has a cam sensor too on the maybe list of why a noid light won't blink for you hence no fuel delivery,

T