Hi Frank,
The engine is a Cummins ISB 325 HP. There has been no work done on the engine. I read about the injector calibration parameters, but I don't think that applies here since none of the injectors have been replaced.
I thought that maybe an injector had gone bad. Or possibly a corroded connector? There does not seem to be anything obvious when looking at the top of the engine.
any idea of what symptoms to expect if the electronics in an injector has gone bad?
Jim M 2007 Cayman XL