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P0507 Diagnostic Trouble Code Discussion for June 2005

Idle Speed Higher Than Expected

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Trouble Ticket Help Requests for DTC P0507
Help Request Posted
1998 Saturn SL 1.9L High Idle VIN: 1G9ZF5288W
P0507: IAC System Too High. ... except for an intermittent high idle that has continued after replacing coolant temp sensor and pigtail. It still sets P0507 code. All scan data seems normal except IAC counts always read zero. I reviewed a couple of movies during abnormal high idle: TPS, ...
June 07, 2005
1997 Chevrolet Malibu 2.4L Poor Idle Quality, Hesitation, Cuts out, Stall, MIL Lamp on
P0507: Idle Speed High. The car have a MIL on with a P0507 code, the IAC valve was replaced and the condition still presented, the car starts fine but it stall out suddenly, all the vacum checks were performed and seems to be fine. Im going at 1500rpm and then I applied the brakes a...
June 17, 2005