Quote Originally Posted by 4doorciv View Post
The mpi relay also supplies power to the coil and injectors. Have you checked for voltages at the relay?
troubleshooting can be a real pain in the a$$...i would just go through and check everything for power coming and going....do it with the key off, the key on accessory, then the key in starting postiion, while cranking, etc...unless you know more of where your problem is

good luck to you...