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Pontiac
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2008
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G6 Base, 2.4 B
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Repair and Diagnosis
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Engine Performance
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System
›
Engine Control System & Fuel System - 2.4L - DTC P0351 To DTC P2544
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DTC P0420
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Repair Procedures
Repair Procedures
IMPORTANT:
A new converter with less than 100 miles on it may set P0420 due to out-gassing of the internal matting. Operating the vehicle at highway speeds for approximately 1 hour may correct the condition.
Exhaust Manifold Replacement (LE5)
Heated Oxygen Sensor 2 Replacement
Exhaust Leakage
Restricted Exhaust