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P0507 Diagnostic Trouble Code Discussion for March 2006

Idle Speed Higher Than Expected

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Trouble Ticket Help Requests for DTC P0507
Help Request Posted
1997 Chevrolet K1500 Cheyenne 5.7L Misfire VIN: 2GCEK19R0V
P0507: Idle Speed High. This vehicle will misfire at idle and inproves off idle. I would suspect broken intake gasket but the plug shows no sign of oil fouling. Can this spider injection system cause a single cyliner misfire? Can there be a vac leak where it will not suck oil from li...
March 01, 2006