I have a 1996 Acura 2.5TL. I have no fuel pressure, no spark, and no communication with OBD. Used a test light at B/Y wire going to fuel pump and there is no power. Check all fuses and checked PGM Main Relay - OK. Used a spark tester, no spark. Hooked up a Snap-On Solus Ultra to OBDII and No Communication. Is the ECM the most likely culprit? If so, what do I need to do to diagnose the ECM?