1993 GMC C1500 coil pack: no fire

1993 GMC C1500
272,000 MILES • V8 • 2WD • AUTOMATIC
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WHITEDEMON89
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My 1500 shut down while driving and wouldn't start again.
I changed the electronic control module, the coil pack, and the ignition control module. The ignition fuse under the dash is good. I don't know what else to check. I pulled a code and it said ECM fault, but I changed the ECM and its still wont start. There is no fire between the coil pack and the distributer cap. please help.
Jun 4, 2008 at 8:44 PM
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RASMATAZ
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Inspect and test the distributor pick-up coil see below


https://www.2carpros.com/forum/automotive_pictures/12900_pick_up_coil_1.jpg

Jun 5, 2008 at 3:34 AM
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WHITEDEMON89
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Am i just looking for continuity?
Jun 5, 2008 at 11:27 AM
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RASMATAZ
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No.1 should read infinite and No.2 500 to 1500ohms
Jun 5, 2008 at 2:50 PM
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WHITEDEMON89
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No 1 was Open Line (infinite)
No 2 was 862 ohms.
Any other ideas would be great. thank you.
Jun 5, 2008 at 7:48 PM
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RASMATAZ
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Check for battery voltage at the pink wire on the coil-No power there and ignition fuse tested good-its coming from the ignition switch.
Jun 6, 2008 at 3:02 PM
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WHITEDEMON89
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pink wire is drawing the same voltage as the battery.
Jun 6, 2008 at 3:39 PM
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RASMATAZ
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Could be a bad ignitiion control module again or the computer is not picking up an ignition reference signal to tell the ICM to fire the coil-

Try this disconnect the coil wire from the distributor and ground it to the engine and crank it over-do you have a snapping blue spark? If so check the rotor and distributor cap-it has to make it out of there to get to the plugs. Still no spark recheck above and test the wiring from the distributor to the computer-
Jun 6, 2008 at 4:10 PM