Question about 1996 Chevrolet Lumina Mini

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Doesn't stay running

Thank you for your suggestion(s). How do I test the throttle position sensor?

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  • chips7905 Feb 04, 2009

    I start my vehicle and press the accelerator and the vehicle dies. when I get the vehicle started and to warm operating temperature the vehicle runs with the rpms above 800. Then when the accelerator is released the vehicle goes to a rough idle and evenually shuts off. I unpluged the tps and the rpms doesn't change. Sometimes the temperature gauge goes all the way over and the temperature light comes on and I shut off the vehicle before it overheats.

  • chips7905 Feb 28, 2009

    tps was replaced.. vehicle ran great for about a day. Now it doesn't stay running.

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Their is a few ways to test the throttle position sensor. One way is to hook up a scaner and go to the data menu. Their will be a place in the menu that will say tps % and tps v. You want to watch the one with the v. The v stands for volts from the t.p.s. Basicly the t.p.s. is a variable resistor. The further you depress the the throttle the more or less volts you get from the t.p.s. The voltage should gradualy go up as you slowly depress the pedal. If the voltage jumps around then the t.p.s. is bad. Another way is to get a volt meter and remove the connector to sensor, touch the contacts on the sensor with the sensor still hooked up and have a friend depress the pedal slowly.

You can find the tps on the opposite side of the cable on the throttle.

Please contact me if you have any more questions or comments.

Thanks, Charlie

Posted on Feb 02, 2009

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