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2003 Buick LeSabre Custom 3.8L MIL Lamp on
O2 sensor 2 readings were flat lined at 430 mv. Disconnected sensor connector and found corrosion on terminals. I am trying to find the source of the corrosion in the connector, I am suspecting a possible infiltration at a splice, but as yet have not been able...
FIX posted 12/11/2007
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Message Closed w/FIX
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Related Documents & Media | VIN | 1G4HP52K43 |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P0140 | Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity Detected |
Message Closed w/FIX
Vehicle Data
2003 Buick LeSabre Custom
| VIN | 1G4HP52K43 |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P0140 | Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity Detected |
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