1991 Oldsmobile Cutlass Ciera Logo
Anonymous Posted on Jul 29, 2017

Adjustable throttle position sensor

Does anyone know if the throttle postion sensor is adjustable on a 91 oldsmobile cutlass ciera? The chilton says some cars are, but doesn't say which cars. If so, how to adjust. Still having the same probs with dying, high idle and trying to cut out on highway. Checked the idle control, changed the pcv valve and now thinking maybe the throttle position sensor is bad. Thanks for any help.
Marilyn

  • Anonymous Apr 27, 2010

    Yep, mine is adjustable. Never mind this question.

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1 Answer

Jeffrey Turcotte

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  • Oldsmobile Master 8,991 Answers
  • Posted on Jul 29, 2017
Jeffrey Turcotte
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I'm assuming you have the 3.3l v-6. When I look up the part, it seems to have slotted holes. Therefore, it is designed to be adjusted after installation. If your tps has these slotted bolt holes, adjust it to satisfy the settings in the test procedure below.

  1. Remove air cleaner. Disconnect the TPS harness from the TPS.
  2. Using suitable jumper wires, connect a digital voltmeter J-29125-A or equivalent to the correct TPS terminals A and B.
  3. With the ignition ON and the engine running, The TPS voltage should be 0.3-1.0 volts at base idle to approximately 4.5 volts at wide open throttle.
  4. If the reading on the TPS is out of specification, check the minimum idle speed before replacing the TPS.
  5. If the voltage reading is correct, remove the voltmeter and jumper wires and reconnect the TPS connector to the sensor.
  6. Reinstall the air cleaner.

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SOURCE: Changing spark plugs on a 1995 Oldsmobile Cutlass Ciera

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