If the sensors are ok, the wiring checks out valve timing is ok, I would be getting the ECU tested for a fault, this is unusual but if you are sure that everything else is ok, you may have to look here next. The question is still open so if anyone else has come across this you may get some more information, also make sure that the sensor plugs are in good condition as I have had other cars do similar things with suspect sensor plugs causing problems.
Mark
Tuesday, August 11th, 2009 AT 5:28 PM