I have come across two of these that turned out to be a pcm and a reflash.
One was found by using a pressure transducer hooked up to the fuel rail and when it acted up you could watch the pulses in the rail raise when the injectors were shuting down. The injector driver went bad internally in the pcm. The PCM should be setting a misfire code but the pcm may also be faulty there too.
Wednesday, January 6th, 2010 AT 7:07 PM