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2002 Chevrolet Monte Carlo SS 3.8L Excessive Emissions, MIL Lamp on
P0420 MIL keeps returning - low catalatic converter
efficiency. catalyic converter was plugged replaced
catalyic converter with aftermarket one, also replaced rear
o2 sensor with aftermarket one,
Summary posted 2/11/2008
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Related Documents & Media | VIN | 2G1WX15K22 |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, MIL Lamp On |
| Misc. | Ss |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/Summary
Vehicle Data
2002 Chevrolet Monte Carlo SS
| VIN | 2G1WX15K22 |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, MIL Lamp On |
| Misc. | Ss |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Video