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2003 Buick Regal LS 3.8L MIL Lamp on
This is the third time that the car has come in with this code. We have replaced the converter two other times with carquest units. the temp is same from the front and rear of the converter. There are no missfire counts in the computer the fuel trims are good....
Summary posted 3/11/2009
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Message Closed w/Summary
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23 Replies Received
23 Replies Received
Related Documents & Media | VIN | 2G4WB52K23 |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/Summary
Vehicle Data
2003 Buick Regal LS
| VIN | 2G4WB52K23 |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
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