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1998 Pontiac Grand Prix SE 3.8L No Power Spark Knock
Posted to GM Driveability on 10/1/2009 4 Replies

when problem happens i have noticed that the 18x ref. signal from the icm to the pcm goes to a 5 volt flat line when this happens i loose the tach car has no powerand spark knocks bad due to incorrect injector timing. it sets a p0336 crank code but my 18x cran...

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  Related Documents & Media  1998 Pontiac Grand Prix SE

 
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car Vehicle Data

1998 Pontiac Grand Prix SE

VIN 1G2WJ52K0W
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsNo Power Spark Knock
OccursCruise, Idle, Intermittently

Trouble Codes

P0336CKP Sensor 1 Circuit Intermittent Signal
Message Closed

car Vehicle Data

1998 Pontiac Grand Prix SE

VIN 1G2WJ52K0W
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsNo Power Spark Knock
OccursCruise, Idle, Intermittently

Trouble Codes

P0336CKP Sensor 1 Circuit Intermittent Signal