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2015 Chevrolet Trax LT 1.4L MIL Lamp on
CODE P0420, This has been a 2 month wrestling match. After confirming with dealer that it's Fed Emmissions we replaced catalytic converter twice. Once Walker Fed and Once Walker Calif. Replaced flex pipe, oem oxygen sensors and exhaust manifold. Called in ...
FIX posted 11/5/2025
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Message Closed w/FIX
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17 Replies Received
17 Replies Received
Related Documents & Media | VIN | KL7CJLSB4F |
| Engine | 1.4 L / 4 cyl / GAS |
| Trans | 6-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) |
Message Closed w/FIX
Vehicle Data
2015 Chevrolet Trax LT
| VIN | KL7CJLSB4F |
| Engine | 1.4 L / 4 cyl / GAS |
| Trans | 6-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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