Originally Posted by JAVYPRO
I tested the coil per the FSM. Tested the primary coil resistance (from + to Hight voltage terminal the standard value calls for .72-.88 ohms I get .9ohms.


Did you check for actual primary voltage? I believe you can also connect a 12v test light to the primary and while cranking engine watch it blink as primary is switched off and on. If not blinking then it'll be the primary switch. I think the switch was the power transistor with signal from ECU.



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