My '82 died on the freeway yesterday and after the tow it is safely in my driveway. That's the good news, the bad news is I'm stuck! I have fuel from my nozzles, and 12V to the coil. How can I check the ECM? The fuses are good. Any suggestions on troubleshooting the coil or rotor or distributor if it isn't the ECM?

If the injectors are firing, that means the ignition module is sending a "crank" signal to the ECM. Ign. module failures are extremely common on HEIs, so even tho it appears to be functioning, it may not be functioning correctly.
Coils can also take a dump at any time, tho they normally give some warning, in the way of running rough/missing.

Have you removed the cap to look at the rotor? The tip of the rotor may have broken off...or the tip of the coil terminal in the top of the cap...that's fairly common, too.

Also...try dis-connecting the 4 wire connector from the distributor...NOT the power into the dist from the cap, but the other harness. This is the EST(Electronic Spark Timing) module harness. If that module goes kerput, it will cause a no spark. Unplugging it will confirm whether or not it is bad. If you unplug it, and the car then starts, the EST module is bad...
You can drive the car with the module un-plugged, but you'll need to put some black tape over the "Check Eng" light...Adams' Apple2008-09-01 07:51:43

Joel,

Disconnecting the 4 wire harness stops the fuel nozzles from spraying, is this correct? More good news, my rotor turns when I crank the engine!

Well CRAP! I fergot one IMPORTANT thing...when you dis-connect the EST connector, you have to jump terminals "J" and "G" together on the vehicle harness for it to start! You have to do this AT the EST module connector...
We used to jumper two wires right at the vehicle harness connector(not the distributor harness) by the distributor to make them run, but I forget which wires...I know one of them was purple, and I think the other was white. I'll have to get out a wiring diagram and check but you could try that real quick to see if your injectors come back to life...
Sorry...I ain't quite awake yet...Adams' Apple2008-09-01 09:29:16

I've ordered both coils from the auto parts store warehouse and they should be in by 1PM today; while I'm waiting I'll try the test on the harness. I'll let you know!

My connectors are DCBA, with D-black (ground), C-brown, B-purple, and A-white. I've tried a bunch of combinations at module and harness and can get no fuel spray. When I re-connect the harness, the  nozzles spray good, either my jumpering is no good or my combinations are not right. I tried purple and white first.

OK guys, trying to learn something here.  I have found reference to the Electronic Spark Control Module in the service manual and found a diagram of it in the  assembly manual but cant determine what part of the car the diagram is showing and I've found pictures of it on ecklers site but still can't find it on my car.  Where in blazes is it located on an 82?

SUCCESS! Merely a bad module, located under the rotor inside the distributor. My coil was good. For less than $20 American, I am a happy camper. A 'volunteer' at the auto parts corroborated the jumper theory. He said jump the A&C connectors at the module, as that is usually the culprit on the module. They tested mine at the auto parts store and it failed in every catagory.

Yep, I know where the ignition module is located but where is THIS located? Crossfire19822008-09-01 12:03:58