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Trax Premier, AWD
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Section 10 (Engine Controls And Fuel - 1.4L (LE2) - Diagnostic Information And Procedures (P0325-P2635) And Symptoms)
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Diagnostic Information and Procedures
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DTC P0420
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Repair Instructions
Repair Instructions
WARNING:
This page is about a different car, the 2018 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
Warm Up Three-Way Catalytic Converter Replacement (LUV, 2H0)
Warm Up Three-Way Catalytic Converter Replacement (LE2)
Exhaust Leakage
Heated Oxygen Sensor Replacement - Sensor 2
Restricted Exhaust