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2002 Pontiac Grand Prix SE 3.1L Hesitation, MIL Lamp on
Car starts right up, idles fine. However when driven stumbles / hesitates / lack of power under load. Plugs and wires were original. Plugs in bad shape. Replaced spark plugs and wires. Symptoms seemed to improve slightly. Fuel pressure was good and increased a...
FIX posted 4/9/2016
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Message Closed w/FIX
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25 Replies Received
25 Replies Received
Related Documents & Media | VIN | 1G2WK52J42 |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / pfi |
| Emissions | OBD-II Compliant |
| Symptoms | Hesitation, MIL Lamp On |
| Occurs | Under Load |
Trouble Codes
| P0300 | Multiple Misfire Detected |
| P0404 | EGR Control Circuit Range/Performance |
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/FIX
Vehicle Data
2002 Pontiac Grand Prix SE
| VIN | 1G2WK52J42 |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / pfi |
| Emissions | OBD-II Compliant |
| Symptoms | Hesitation, MIL Lamp On |
| Occurs | Under Load |
Trouble Codes
| P0300 | Multiple Misfire Detected |
| P0404 | EGR Control Circuit Range/Performance |
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Video