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P0638 Diagnostic Trouble Code Discussion for November 2010

Throttle Actuator Control Range/Performance

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Trouble Ticket Help Requests for DTC P0638
Help Request Posted
2002 Saturn Vue 3.0L MIL Lamp on VIN: 5GZCZ63B12
P0638: Trouttle Valve circuit problem. hey guys I have this thing for 3 weeks.it idles ok but it will not reb. the most I get is 1600 rpm s.I try a used trouttle valve and still the same.I try a used ECM with no good results.I check the wires from the trouttle valve to the ECM/PCM they are ok. no s...
November 10, 2010