Car died in traffic.., And it started right back up after havin it towed home.. **FIXED-ECU Options

[kevin311]

Thought I had this issue fixed after I replaced the igniter and dizzy last year to fix a code 12. Apparently not. This has happened twice now. Once before replacement parts, and this is the first time since new parts were installed. Left work yesterday and only got about 5 miles and the car sputtered a little and then just knocked off while I was sitting at a stop light. Had it towed home 35 miles and was able to crank it back up and drive it off the rollback.. Temp never got hot, has been staying just under midpoint of temp gauge (is that normal op temp btw?) CEL didn't come on this time either like it had before. It's a '94 GT 5sp. Not sure where to start. I've read it could be coolant temp sensor giving false reading to PCM and killing the engine bc of high engine temp. Does the 5s really have this fail safe?! Thought it was odd. Also read it could be clogged cat converter, but not throwing any codes. Considering I've replaced just about all the ignition components since owning the car I believe it may be fuel related. Any input is appreciated. Thanks in advance guys.

This post has been edited by kevin311: Oct 6, 2014 - 10:13 PM

[VavAlephVav]

well the signal wires for the dizzy run straight from the ECU plug to the dizzy. more likely problems are in the connectors. more likely the one out on the dizzy because it gets so hot.
Like I show in my thread, you can get a new plug from a Camry in the salvage yard, but the colors of the wires are not in the same place. So you gotta be careful about that.
its possible you may have some other problem. but when something works one min, then doesn't work the next, then starts working again I suspect Electronic gadgets. take a look at the pics of what my ecu board looked like in that link. there were some completely melted components, but also the faces of all the big computer chips looked like they had been hot and the surface coating had peeled away.
if you see shet like that you can be pretty sure its the source of your problem.

I would probably go though the ecu pin test with a volt meter and ohm meter to check the ground continuity from the ecu plugs too.
http://bgbonline.celicatech.com/94_6gmanua...odes%202.2L.pdf
http://bgbonline.celicatech.com/94_6gmanua...out%20codes.pdf
http://bgbonline.celicatech.com/94_6gmanua...ge%20charts.pdf