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1998 Cadillac DeVille 4.6L Poor Idle Quality, Misfire, MIL Lamp on
customer just got this car came in with check engine light on PO300 RANDOM MISFIRE counts on cylinders 1,3,5,7,only at idle smoke test/replaced intake gaskets, unplugged o2 much better result, 2 new o2 sensors misfires return, fuel trims on bank 1 goes neg 15,...
FIX posted 8/11/2008
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Message Closed w/FIX
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10 Replies Received
10 Replies Received
Related Documents & Media | VIN | 1G6KD54Y6W |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
| Occurs | Idle |
Trouble Codes
| P0300 | Multiple Misfire Detected |
Message Closed w/FIX
Vehicle Data
1998 Cadillac DeVille
| VIN | 1G6KD54Y6W |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
| Occurs | Idle |
Trouble Codes
| P0300 | Multiple Misfire Detected |
Video