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P0502 Diagnostic Trouble Code Discussion for August 2014

VSS Circuit Low Input


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Trouble Ticket Help Requests for DTC P0502
Help Request Posted
2001 Pontiac Grand Prix GTP 3.8L high idle VIN: 1G2WR52141
P0502: VSS Circuit Low Input. Car came n with a very high idle. 2000 rpm at idle or n gear. Customer put a cold air intake kit on vehicle, and that's when the problem started. he said there was no problems with the car before hand. So he took the cold air kit off. Still no good, high idle ...
August 27, 2014