Intermittent no start condition

[buzzinhalfdozen]

Originally Posted by John Nechiporchik

Rich, I did test the coil immediately after experiencing the no-start condition. I placed the spark tester between the coil and the coil wire. Spark was there. I did not, however, test it on the other side of the coil wire (your process). I will do that tomorrow. That would eliminate or validate a bad coil wire. I will go through all the wiring this weekend....after I do the noid test.
I will find a noid between now and the weekend.
Thanks.

Having spark coming out of the coil indicates you indeed do have the necc. trigger to initiate spark. Where you tested it isn't an issue, you've proven that the MSD portion is operational. I really doubt you would have a bad coil wire causing this as you would have other symptoms. Though it is a good idea to regularly change the coil wire as all the spark energy is directed thru it as opposed to single events thru the plug wires. Seems as though you are down to correct signaling to EFI controller or the controoler itself, BTW how are your injectors powered? The ECU merely provides the ground, if your power to the injectors is erratic you'll see the same issue. Joe