LEMON Manuals
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Pontiac
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2009
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Torrent Base, AWD
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls And Fuel - 3.4L - DTC P0401 To DTC P2544
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DTC P0420
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Repair Procedures
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Repair Procedures
NOTE:
A new converter with less than 100 miles on it may set DTC 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 - Left Side (LNJ)
Exhaust Manifold Replacement - Right Side (LNJ)
Catalytic Converter Replacement
Heated Oxygen Sensor Replacement - Sensor 1
Heated Oxygen Sensor Replacement - Sensor 2
Exhaust Leakage
Restricted Exhaust