It means the crank and cam sensors are not in sync with each other. It could be the cam sensor OR crank sensor....OR the timing chain may have even jumped (which is very uncommon) I've also seen camshaft or crankshaft alignment pin shear off (also very uncommon). The only way to really know or get a lead on it is for someone to watch the scan tool readings of the 2 sensors to get an idea where the problem is. You could also have a broken flexplate (seen many times on earlier models but not on one as new as 2005 so far) which would make the crankshaft sensor read incorrectly, the pickup for the crank sensor is part of the flexplate BTW. Hopefully it's just one of the sensors. If it is make sure and do both of them because they ususally have about the same life span.
At least get an expert diagnostic on it. You can have it repaired anywhere.
Last edited by TNtech; 10-21-2010 at 10:35 PM.