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PostPosted: Mon Aug 25, 2014 4:03 pm 
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Restricted Newbie

Joined: Tue Jul 12, 2011 11:09 am
Posts: 9
Location: E.S. MD
I have a 92 colt that decided it did not want to live anymore. The problem is it's getting fuel but no spark. I happen to have a spare computer that works, at least it did a month ago when I tested it on said car and it still did not start. I have triple checked all of the connections on the car and they all seem fine. Even popped them off and re-seated them with no luck. I ran TMOLog while cranking and it shows the TDC sensor is working. I'm not really sure what else to check. Advise?


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PostPosted: Wed Aug 27, 2014 7:30 am 
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The Silent Administrator
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Joined: Wed Dec 24, 2003 3:32 pm
Posts: 9524
Location: Ottawa, ON, Canada
I had an ECU go bad and lost all spark.

I used a multimeter to check the wiring to the ECU, internal resistances of my coils and circuits that relate to the coil and internal transistor design, and it all lead to a bad ECU.

FSM's located at www.lilevo.com/mirage/ will net you the diagnostic process.

Checking coil primary and secondary resistances, is a simple start.

Be aware that you irreparably flood the plugs if cranking too long with only fuel going in.


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