Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
ok, this code indicates a problem with the throttle position sensor mounted on the throttle body.The Powertrain Control Module (PCM) supplies a 5.0 volt reference signal and a ground to the sensor. The TP sensor sends a voltage signal back to the PCM relative to the throttle plate opening. The voltage will vary from approximately 0.35 volt at closed throttle, to over 4.65 volts at wide open throttle (WOT). without a scan tool that reads real time data it would be hard to know for sure what the problem is. but 90 percent of the time it is the tps sensor that is causing the problem. here is a picture, fairly easy to replace.
If there is anything you dont understand, please feel free to ask me to explain.
tps is number 2 in below picture
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