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1996 Pontiac Firebird 3.8L Misfire
the car sets random codes at random times, po300 po303, and po306. we installed 3 new coils an ign. control mod. new wires and plugs to no avail. please help me. we have 2 idetical cars with the same problem. thanks in advance.
FIX posted 4/15/2001
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Related Documents & Media 
| VIN | 2G2FS22K5T |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire |
| Occurs | Intermittently |
Trouble Codes
| P0300 | Multiple Misfire Detected |
| P0303 | Cylinder 3 Misfire Detected |
| P0306 | Cylinder 6 Misfire Detected |
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Vehicle Data
1996 Pontiac Firebird
| VIN | 2G2FS22K5T |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire |
| Occurs | Intermittently |
Trouble Codes
| P0300 | Multiple Misfire Detected |
| P0303 | Cylinder 3 Misfire Detected |
| P0306 | Cylinder 6 Misfire Detected |
Video