OK, kids are asleep.

As stated, no 12v at the coil primary connector. That's either because I've got a bad connector (which would explain the manner in which she died--intermittent at first, then worsened till dead), or there is something further upstream keeping 12v from getting there?

To recap some more:

I have tested (or replaced with known working unit) the coil, PT, cap, rotor, dizzy (replaced whole thing), ECU, TPS.

Dave, I did your test as well on the ignition switch. It seems like its behaving normally. Since I did that kinda in a hurry (was getting rained on) let's leave that on the table as a possible cause.

So with the above eliminated, we are left with:

-Coil Primary Connector

-Some mystery section of wire or connector somewhere in the 12V line to the coil

-Ignition Switch

-Control Relay

-Satan herself

Oh great Guru's, can any of these items be ruled out based on what we know is working? Is there anything else I left off the list that I should be checking?

And back to that no-tach situation...where does that tach signal come from? I would assume the dizzy, but if that were the case then it should be getting signal.

If the ECU is giving the 5v signal voltage, then the ECU is completely happy then, correct? But then why is it not firing the injectors?

I feel like we are close! - <img src="/forums/images/graemlins/cheers.gif" alt="" />


1991 Montero LS (LWB) 3.0L V6 Stock 205K Miles