Digital Tuning 1992 5.0 stock except 3G alternator and exhaust.

1992Stocker

New Member
Feb 3, 2019
5
0
1
Florida
Car has around 160k original miles. Emission components removed. Starts every time and will idle for over an hour. Problem comes when you drive it. While cruising ignition shuts off no spark at all. If I punch the clutch in and try to restart it only turns over. It will restart if I push in the clutch, cycle the ignition switch off and then restart. Car will continue down the road and may or may not shut down again. I’m chasing down A ghost and have changed everything but TPS and MAP. Reman distributor swapped too. Checked wiring and all was good. Pulled ECM and opened it and saw the capacitors were bad so I sent it to “The EFI Guy” who replaced them for me $50.00 he did a great fast job. Car still shut off after driving for 5 minutes. Any help would be great. Timing is set at 10degrees and when the spout is put back in it does change the timing so it’s working. Ran codes and I get an 18 (Spout) Would the relay for the ECM cause this issue?
 
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General karthief

wonder how much it would cost to ship you a pair
Mod Dude
Aug 25, 2016
17,245
5,531
193
polk county florida
I'd take a look at the ignition switch under the dash, they are known to have issues, but instead of random parts replacement, time wasted and money spent I suggest the famous 'surging idle checklist', http://forums.stangnet.com/showthread.php?t=698148
Start at the top and work it step by step.
Thanks to jrichker and others who contributed to the technical/how to threads.
 

1992Stocker

New Member
Feb 3, 2019
5
0
1
Florida
Ignition switch was good. Car just drops spark but will start right back up if you cycle the key off first then throw a spout code (18)
 

a91what

SendMeUrDataLog
Mod Dude
Apr 6, 2011
9,612
5,805
204
31
Hillsborough county
you replaced the distributor, did you replace the TFI? what color is the TFI, it should be grey the black ones are meant for later ECU.
 

a91what

SendMeUrDataLog
Mod Dude
Apr 6, 2011
9,612
5,805
204
31
Hillsborough county
power to the TFI / ign circuit does not come from the ECU, I would check to see if there is a voltage issue at the coil once hot if the coil is new.
 

Steel1

Mustang Master
Aug 18, 2017
1,111
504
143
51
Connecticut
Does the reman distributor have Ford electronic internals or is off-shore?
If guts are not Ford/Motorcraft (including shutter wheel) this could be
causing some issues.
 
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General karthief

wonder how much it would cost to ship you a pair
Mod Dude
Aug 25, 2016
17,245
5,531
193
polk county florida
All good suggestions, but to find the problem without try'n to get lucky you have to do the diagnostic work, the link in the previous posts are a diagnostic procedure to find and repair the problem.
 
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