Originally Posted by padgett
Would take the module to AZ and have tested first, If anyone can R&R the crank sensor without pulling the balancer I'd like to hear about it (am good at the big breaker bar and starter method but that doesn't get it torqued back properly).
IMHO, if you've got what looks like a working ignition system that isn't firing, then go see what supposed to tell it to fire, and see if it is. So I vote for the crank sensor going bad (or, heck, maybe just a loose wiring connection _to_ the sensor). It'* not in a real friendly environment for working conditions, after all. I can't remember the last time I traced a problem to a computer or controller going bad -- the closest I've gotten to that is a bad connector _on_ the controller, from the usual oxidized-pins problem that also makes the gauges and displays start flickering.
I guess if you've got multiple suspects and no helpful troubleshooting guide in the manual for it, I'd tackle the possibilities in this order:
1) Check for error codes, if any
2) For anything that can be easily removed:
2a) Swap in a known-good one from a similar car, or
2b) Bench-test it if possible
3) If you're still no wiser, buy new components, starting with the cheapest or easiest-to-return components first.
Realistically, you shouldn't need to go beyond Step 2, but I know sometimes ya gotta just fall back and punt...