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2003 Mazda Protege ES 2.0L Misfire, MIL Lamp on
had po3oob code , replaced plugs and filters then it has come back with multiple missfire code and cat. efficency below thresshold ..../. what does this mean . is it related to the front or rear o2 sensor , and the multiple missfire code ?? any help appreciate...
Summary posted 11/23/2008
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Related Documents & Media | VIN | JM1BJ22583 |
| Engine | 2.0 L / 4 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire, MIL Lamp On |
Trouble Codes
| P0300 | Multiple Misfire Detected |
| P0421 | Catalytic Converter Efficiency (Bank 1) |
Message Closed w/Summary
Vehicle Data
2003 Mazda Protege ES
| VIN | JM1BJ22583 |
| Engine | 2.0 L / 4 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire, MIL Lamp On |
Trouble Codes
| P0300 | Multiple Misfire Detected |
| P0421 | Catalytic Converter Efficiency (Bank 1) |
Video