FiTech EFI system

Ken5124, I have a new chrysler style 1 wire alternator. I've checked everything twice. But after looking things over again I think it's loosing tach signal. I tried it without the msd box and it's worse. It's pointing me to my dizzy. It's an msd too and did the ohm check. It checked out good but I'm still going to swap in another. I've also swapped in a new coil with no change. Really crossing my fingers it's the dizzy. It ran crazy good the first week I had it running.

My initial thought is that your one wire alternator is not charging at lower rpm/s and perhaps your battery got drained somewhat over the week it was in use ?? Not an electrical guru, but I would check the voltage output at idle. I think some of those 1 wire alternator's require a certain rpm to "excite" When you ran it last week was it just in the garage, or out on the road for a while?

Sorry just guessing without knowing exactly how everything is wired.

The fitech handheld, if you scroll several pages over from the first dashboard page, will display what voltage the system is seeing.