1988 Corvette while driving engine cut off could not restart.

[HOROLOGIST]

We towed it to my home next day checked for trouble codes none stored, started up immediately fuel psi 38 running fine again engine cut off at normal temperature could not restart it while cranking I smell fuel no spark I checked injectors hot 17.2~17.0~17.2~17.3~17.2~17.2~17.3~17.3. Next day I checked fuel injectors cold 16.4~16.3~16.3~16.4~16.4~16.4~16.4~16.3. also replaced HEI module also tested pick up coil ohmmeter reading value is 800 I also replace fuel filter. Engine started up running great fuel psi normal 38 kept idling temperature reached 190 engine cut off could not restart it, NO spark fuel delivery is ok. I am a new member I am reaching out for help from members.

[LLC5]

Check your ignition coil for carbon tracking to the outer metal holder, check the underside of your distributer rotor for the same carbon tracks, make sure your coil is grounded properly with a ground strap inside the distributer cap. Do you have battery voltage on the big red wire to the distributer with the ignition on and when cranking the engine over? Good luck with it.

[HOROLOGIST]

Originally Posted by LLC5

Check your ignition coil for carbon tracking to the outer metal holder, check the underside of your distributer rotor for the same carbon tracks, make sure your coil is grounded properly with a ground strap inside the distributer cap. Do you have battery voltage on the big red wire to the distributer with the ignition on and when cranking the engine over? Good luck with it.

Thank you for your suggestions, there is power to the distributor. I decided to replace the following parts all are factory originals: New capacitor- distributor cap – rotor- coil- AC Delco spark plug wires. Engine started up first crank running I let it idle there is a foul odor coming out of the tailpipe, again engine cut off at a lower temperature at 185 I have no idea the reason engine cuts off I could not restart fuel delivery is OK Next day started up running, I have no idea causing engine to stall. I read my shop manual made tests I am overlooking something,

[ChuckG]

Check the cats for obstruction. They are a known weak spot.

[LLC5]

Originally Posted by HOROLOGIST

Thank you for your suggestions, there is power to the distributor. I decided to replace the following parts all are factory originals: New capacitor- distributor cap – rotor- coil- AC Delco spark plug wires. Engine started up first crank running I let it idle there is a foul odor coming out of the tailpipe, again engine cut off at a lower temperature at 185 I have no idea the reason engine cuts off I could not restart fuel delivery is OK Next day started up running, I have no idea causing engine to stall. I read my shop manual made tests I am overlooking something,

Are you absolutley positive that you have no spark when it dies and won't restart? Also, check for injector pulse at the injectors with a noid light when the problem is active.

[HOROLOGIST]

Originally Posted by LLC5

Are you absolutley positive that you have no spark when it dies and won't restart? Also, check for injector pulse at the injectors with a noid light when the problem is active.

When engine cut out I used my inline spark tester there is no spark, I used my noid light no signal. Like I mentioned earlier when engine is cold starts up runs great as soon as reaches normal temperature cuts out will not start up until cools off. At this point I have no idea how to correct this problem. I thank you for your help.

[ralphflores@ca.rr]

I just went through similar situation, car would stall, went through-out fuel delivery , then went to ignition, found out alternator had loose wire, that damaged distributor damage, replaced also pick up coil and also MAF was contributer

[LLC5]

Originally Posted by HOROLOGIST

When engine cut out I used my inline spark tester there is no spark, I used my noid light no signal. Like I mentioned earlier when engine is cold starts up runs great as soon as reaches normal temperature cuts out will not start up until cools off. At this point I have no idea how to correct this problem. I thank you for your help.

If you have no spark and no injector pulse, then it sounds like a ignition primary circuit issue. Test your dist. pick up coil for resistance and wiggle the wires slightly to make sure they are not broken where they go into the pick up coil windings. If everything checks good then it may be your ignition module. Good luck with it.

[c4c5specialist]

HI there,

Yes, I agree with Larry. Check your pickup coil for correct resistance.

The pickup coil gives the signal to the PCM for fuel injector pulse as well as firing the coil for spark.

At the same time, double check the RPM signal on the white wire.

I would be leaning to the pickup coil.

Allthebest, c4c5