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Re: 1995 Lesabre motor surging and dying at stops
You need to check the TPS for proper voltage and "spring return" action. The TPS, is simply a potentiometer used to vary voltage. The best way to check the voltage is with a scanner, but if you do not have access to one, you can use a DVM. The TPS WHITE wire, is the PCM reference signal and should measure 5.0V with ignition on. (Engine does not need to be running) The BLUE wire will show variable voltage from a closed TB position, up to WOT, where it should measure 4.0V - 4.5V max. The BLACK wire is ground.
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