
2003 Cadillac DeVille 4.6L Misfire
We installed the boot and the car is missing badly. The scanner says code PO300 but under miss fire data it shows #5&6 cylinders missing but no code for them. I did a compression test on #6 and it shows 173psi and has injector pulse and did a fuel pressure dro...
FIX posted 8/12/2011
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Message Closed w/FIX
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VIN | 1G6KD54Y03 |
Engine | 4.6 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Misfire |
Occurs | Always |
Trouble Codes
P0300 | Multiple Misfire Detected |
Message Closed w/FIX
Vehicle Data
2003 Cadillac DeVille
VIN | 1G6KD54Y03 |
Engine | 4.6 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Misfire |
Occurs | Always |
Trouble Codes
P0300 | Multiple Misfire Detected |