am stumped. Stopping for the day to regroup. Just need outside help.
Was driving, came to a red light and engine died (no check light came on). Tried to restart and engine would crank but not start. Got the car home via tow. And the initial tests began. Came to find no spark at spark plugs. Time to pull out the repair manual. Started my way down Chart C-4A. Ended up replacing the Ignition Coil, The Module, The Pick-Up Coil, Distributor Cap and Rotor (all were old or used parts I had put in) finally made it all the way down the diagram, still with no spark. So checked the spark plug wires for resistance, they were still good. Checked Fuses, good. Checked Codes, just 12. So I checked the resitance from Aldl Connector 'M' to ECM harness, no breaks. Then went through and checked Volts at ECM harness, all matched up besides: Bypass BC7 (7.3v instead of 0), EST BC8 (6.6v instead of 0), Reference BD8 (10.3v instead of 0), and Reference Low BD9 (10.6v instead of 0). Pulled out wiring diagram, found all wires were from Module to ECM. Thought maybe the resistors in ECM werent closing so I replaced the ECM. Still no Spark, but will crank. Going to recheck volts at ECM in the morning out of curiousity. But now i'm stumped and would like some outside feedback. Any ideas? What am I missing?

 

Where is the last place you have spark? From the coil to the distributor or the distributor to the wires?

 

No where. Have no spark anywhere.

 

Often when you get higher voltage than you should it's because of a bad ground. Check all your ground points.

GD

 

About two cylinders.

Badum tiss. Been holding this one in for DAYS. Sorry.

 

Any security system on the car? And how are you checking for spark?