I have a 2001 montero sport limited. It's been turning over good but no crank, so I did a full tune up. Changed timing belt, water pump, crank and cam sensors, spark plug and wires, fuel pump and filter, maf sensor, idle control sensor, throttle sensor. Tested compression and all cylinders was at about 120psi. Sprayed starter fluid while cranking but ni reaction. Put a test light on coil wires. I have positive feed on all 3 wires but no negative. Tried turning it over to see if negative lead get a pulse or something but nothing. Leaves me with 3 possible problems. Bad ignition control module, crank or cam sensor that I've already changed, or the ecm. How do I figure this one out? How can I test to see if it's the module or not?

 

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