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2008 Chevrolet Malibu Hybrid – Check Engine Light With P0420

Aug 15
1 min read

Updated: Aug 15

CUSTOMER CONCERN

Customer states the check-engine light is on. DTC P0420 is stored.

CAUSE

Exhaust-manifold, misfire, coolant-consumption and fuel-trim checks confirmed the catalytic converter was below efficiency.

CORRECTION

Remove and replace catalytic converter. Clear DTC P0420 and verify catalyst-monitor operation.

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2008 Chevrolet Malibu Hybrid – Check Engine Light With P0420

CUSTOMER CONCERN

CAUSE

CORRECTION

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