Rick's Free Auto Repair Advice

Posts Tagged: P1174

P0171, P0300, P1174

How to fix codes P0171, P0300, P1174 GM has issued a technical service bulletin # 08-06-04-001B to address trouble codes P0171, P0300, P1174 on the following vehicles: 2006-2007 Chevrolet Cobalt, HHR 2006 Pontiac Pursuit (Canada) 2007 Pontiac G5, G6 2006-2007 Saturn ION with 2.4L Engine (VIN B, P – RPO LE5) P0171 System too Lean (Bank 1) P0300 Random/Multiple Cylinder Misfire Detected P1174 Fuel Trim Cylinder Imbalance The most common cause for these types of trouble codes are vacuum leaks or plugged injectors that deliver too little fuel and cause … Read More

Rough idle P0171 P0300 P1174

Fix rough idle P0171 P0300 P1174 Engine runs rough, P0171, P0300, P1174 on Saturn Ion GM has issued a technical service bulletin (TSB) 08-06-04-001 to address engine┬áRough idle P0171 P0300 P1174 problems on 2006-07 Chevrolet Cobalt and HHR, 2007 Pontiac G5 and G6, and 2006-07 Saturn Ion with the 2.4L engine. The engines in these vehicle may experience injector clogging that results in rough operation and trouble codes P0171, P0300, P1174. GM advises that if one injector is plugged, you must replace all injectors with an updated version (Part 12602480) … Read More


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