Turn ignition OFF. Disconnect PCM harness connector. Check for continuity between the PCM connector terminal and the appropriate injector harness connector terminal. Since you have 12v (on the BLK/RED wire(s) to the injectors, be sure to check the ground wires of the injectors for continuity). If continuity does not exists, repair the open or short in the wire between the PCM and injector harness connector. Repeat this process on each PCM to injector circuit.
Also check that the ground wires (black, approx. 14 16 gauge) on the intake manifold at clean and tight.
If all is OK, suspect a Faulty ECM (also referred to as the PCM or ECCS).
Sunday, July 17th, 2016 AT 9:35 AM