Originally Posted by RubberBerner
89-91 maximas came with the vg30e and the 92-94's came with the dual cam. 95+ is a VQ. Those harnesses are known to rot and ground out around the fire wall and other tight areas. the coil packs (as tampamax said) are also known to go out. common problems...i'll check TSB's on that if you want me to tomorrow.
Is there reference voltage at the injector plug?
While you're looking could you double check on the rotting harness issues. I know the older maximas had intermitent issuses, but have never heard of a 4th gen or later having "any" harness issues. The closest thing that comes to mind for the VQ series maximas is the 5.5 gens had a problem with the maf blowing for no appearent reason. Being that i didn't have one i didn't bother to stay abreast of what the cause was.