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Home >> Pontiac >> 2008 >> Torrent GXP, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Controls And Fuel - 3.4L - DTC P0401 To DTC P2544) >> DTC P0420 >> Repair Procedures

Repair Procedures

WARNING: This page is about a different variant/trim than selected.
IMPORTANT: 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.