Mechanics

DTC

2001 Saturn Sport Coupe

Engine Performance problem
2001 Saturn Sport Coupe 4 cyl

i have dtc p1635. That code doesnt tell me much. Is there a flo-chart or any info on where to start. Where is circuit 1?
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Patco1
June 18, 2009.



Only have seen that code set as a flase code meaning that it was set without an actual fault for the parameters to set it. What I was told when asked yrs ago from saturn tech assitance was it was set if the key was rotated off and on too many times in a row to fast.I have reset those codes and the customer never came back so I learned to ignore those codes when it was just that code. Is that the only code u have?
Louie

Saturntech9
Nov 16, 2009.