Possible causes – Faulty Oxygen sensor– Ignition problem– Fuel injection problem– Engine mechanical condition Tech description There is a factory service bulletin for the following Pontiac models: 2000-2001 Pontiac Transport2000-2002 Pontiac Firebird2000-2008 Pontiac Bonneville2000-2008 Pontiac Grand Am2000-2008 Pontiac Grand Prix2000-2008 Pontiac Sunfire2001-2008 Pontiac Aztek2002-2008 Pontiac Montana2000-2008 Pontiac Factory Service Bulletin OBDII Code P1174 Symptoms –…