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2008 Buick LaCrosse CX 3.8L MIL Lamp on
Thanks in advance. code p0420 keep coming back after use three different cat and Oem oxygen sensors up and down [...] exhaust leak. check from dealer recommend Oem converter. My last option is use Oem catalyst converter cost about $1800 included core charg...
Summary posted 7/21/2022
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Related Documents & Media | VIN | 2G4WC58238 |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Not Applicable |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
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Vehicle Data
2008 Buick LaCrosse CX
| VIN | 2G4WC58238 |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Not Applicable |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
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