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1996 Cadillac DeVille 4.6L MIL Lamp on, HIGH IDLE
Posted to GM Driveability on 2/5/2009 8 Replies

I got this Cadillac here with a code P0507 high idle. At idle the engine is running at 1050 rpm which is about 400 rpm too high. Checked for air leaks and found that when the PCV was removed from the valve cover the idle came down a little, but not enough. Als...

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  Related Documents & Media  1996 Cadillac DeVille

 
Message Closed w/FIX

car Vehicle Data

1996 Cadillac DeVille

VIN 1G6KD52Y1T
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp on, High Idle
OccursAlways

Trouble Codes

P0507Idle Speed Control System Higher Than Expected
Message Closed w/FIX

car Vehicle Data

1996 Cadillac DeVille

VIN 1G6KD52Y1T
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp on, High Idle
OccursAlways

Trouble Codes

P0507Idle Speed Control System Higher Than Expected