OK sorry, but I was able to get them to fire with a 9 volt battery.

But I still need to see if I can confirm the 12v supply voltage from the ECU by testing at the connector harness. I have a noid light but also a 12 volt LED that I may be able to back probe into the connector. I would prefer to connect to the disconnected harness and just turn the engine over.

Anyone think that will work?

92 Montero LS 3.0L V6 Auto, Stock, Original owner, 185,800K miles