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2001 Buick Century Custom 3.1L MIL Lamp on
This vehicle about a year and half ago came in with bad miss fire, replace plugs and wires, unknown how long condition had been happening, approx six months ago came in with lack of power, diagnosed plugged convertor, replaced convertor with economy aftermarke...
Summary posted 3/2/2007
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29 Replies Received
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Related Documents & Media | VIN | 2G4WS52J01 |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/Summary
Vehicle Data
2001 Buick Century Custom
| VIN | 2G4WS52J01 |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
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