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P0121 Diagnostic Trouble Code Discussion for November 2017

Throttle Position Sensor Does Not Agree With MAP

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Trouble Ticket Help Requests for DTC P0121
Help Request Posted
1997 Chevrolet K1500 Cheyenne 5.7L No Start, Stall VIN: 2GCEK19R9V
P0121: TP Sensor Performance. Hello everyone. Not really new to IATN but did recently open my own shop. IATN and all of you are a great resource to have. So I have a 97 K1500 that was brought to me because it would not idle. Vehicle wont start or idle unless you crack open throttle. Found ...
November 14, 2017