Can you access mode 6 data on your scan tool to see if any cylinders show a count of missing? Does vehicle still die when ac is turned on if so remove or loosen belt and see if that remidies it. If it changes suspect the compressor starting to fail. If no change then you may have a wiring/pcm issue. Check to make sure the timing is on. If the timing is off it will run as described doesnt take much. Sometimes only several ribs will break off and it can cause the vehicle to keep constantly changing fuel trims because the intake/exhaust strokes are constantly changing. Or the sudden snaping of the compressor turning on caused the timing belt to slip and that is why it now stays poor running all of the time.
Thursday, March 22nd, 2012 AT 3:23 AM