Mudge Posted April 23, 2003 Author Share Posted April 23, 2003 No, the computer really couldn't care less - the injector timing is based only on the crank angle sensor. The ignition timing is based off the same reference - they are separate systems. Gotcha, but mine is in the diz, I have an 82 setup. There is a high res and low res pulse I believe(?) one with a 6 pulse per revolution and 360 per revolution of the diz I think. I'll test both diz signal pins again to see whats doin, I can't see what else would be holding it up Quote Link to comment Share on other sites More sharing options...
Mudge Posted April 24, 2003 Author Share Posted April 24, 2003 Sleeper, do you have any idea if I could use the signal from the diz to trigger one of these boxes that accepts a "crank trigger" style signal? Quote Link to comment Share on other sites More sharing options...
SleeperZ Posted April 24, 2003 Share Posted April 24, 2003 In theory I suppose it should work - the crank angle sensor in the distributor will give you a TDC trigger for every cylinder (the coarse signal, 6 per rotation). Adapting the signal levels would be easy, if you knew the requirements for the ignition box. Quote Link to comment Share on other sites More sharing options...
Mudge Posted April 24, 2003 Author Share Posted April 24, 2003 Yeah, thats the tough part, I know ignition boxes like I know what goes on at Area 51, and online info is sadly lacking. I'll check out Megaspark closer, since I know that is customizeable. Quote Link to comment Share on other sites More sharing options...
Mudge Posted April 24, 2003 Author Share Posted April 24, 2003 Good news, sort of. Pins 8 and 17 test out with two distinctly different voltage signals, both fluctuate when rotating the diz. Turning the diz by hand gives me a signal at the pin 5 output (YW), aka the negative transistor 'trigger.' It gives me a solid ground and goes to zero volts intermittently when rotating, looking at the response time of the DVM I can see that it would be too slow when cranking the car by the starter, to show me any kind of reaction. The light that I used is a 10w 12v bulb too, so I think it was holding a charge long enough that I couldn't see reaction from it, since this pin 5 output is a low power trigger (light was dim). Injectors still try to fire (fuel is unplugged for testing), each one I know clicks because I hooked up one injector at a time. So I can assume that maybe the ignition module is dead, but at this point I assume nothing as fact argh Quote Link to comment Share on other sites More sharing options...
Guest aspemino Posted June 2, 2003 Share Posted June 2, 2003 My car was losing ignition too ('83 turbo z) If you get a logic sensor ($40-$60) which is a fancy led circuit tester you can see every time the signal is sent from the dizzy, either for the fuel or ignition. I was able to check mine while I cranked it over with the key at the ecu harness. (Mine only failed once it got good and warm!) If that checks out ok, then recheck it at the transistor/ignitor then you will know that it must be the wiring or the ecu. Good luck, Aspemino Quote Link to comment Share on other sites More sharing options...
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