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What are the steps for adjusting a TPS on a 1986 Cadillac Deville?

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You need a voltmeter to adjust it . Back probe the signal wire with aT pin or small paper clip . Hook voltmeter negative lead to ground and the positive to the T pin . You have to measure voltage between one of the pins and ground. When the throttle is closed, should be around 0.5 volts. Fully open is 5 volts. To check for the correct wire . there are three wires , one should have 5 volts , one should have continuity with ground . None of those is the one ! The signal return is probably the center wire , that's the one you check on . Just double check .

Posted on Dec 25, 2016

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  • Jeff Armer Dec 25, 2016

    Your welcome and Merry Christmas to you as well !



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I would like to find out what error codes e26 e27 e52 mean on service soon of 1986 Cadillac Deville

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