I am trying to help my nephew with a 93 dakota 318 2 wd that won't start. Running normally and would not start one morning. We replaced the coil because of no spark. We have voltage at the coil. It has a sync signal generator in the distributor, but no way to test that I can find. Based on odor, we have fuel when cranking, but no officail test. Only a 12 and 55 trouble codes which appear to be normal codes. Any ideas before we throw more money at it?

You might check the coil. If there's no spark it has gone bad (around $100.00 at Auto parts stores, if you replace it yourself.) That's the easier one to fix. The other is the distributor. They also go bad, and cause the same problem.

I believe the ignition control is inside the computer on inner
fender like all 1990's dodge & chry cars & trucks

Forgot the name of the Module,I had a 92 dakota. 318/5.2

There is a relay ASD or something like that in the under hood
distribution box,check that or switch with a similar relay

The cover should hace a diagram if relays

Can you jumper the fuel pump and make it start and continue to run ?
Have you checked to see if you are getting spark when it won't start ?
Could be a relay or coil, ignition module, or other component.

The negative part of the ignition coil is the tach,the tach of the dash is non op

it sounds like the fuel pump is quitting once it gets warm. I've seen this plenty of times. When you turn the key to on, not all the way to start you should hear the fuel pump humm for a second or 2. When it quits on you try this to see if you get that humming. I bet the pump is dying, specially since everything else is new. Good luck and I hope this helps you.

Yes this may help try a new ignition switch .i had a 93 and it done the same thing to me .hope this help you ....

One way to confirm if it's a spark problem or fuel delivery problem is, when it quits and won't start, remove air intake hose at throttle body opening and spray some WD-40 ( 2-3 sec. ) into throttle body, then try to start. If it fires up momentarily then stalls again, have fuel pressure tested. The WD-40 acts like quick start and if that fires the engine over, then you have spark, but not enough or any fuel.
If that doesn't help, no start at all even with WD-40 sprayed in throttle body, then I'd think real serious about changing the hall effect pick-up ( pick-up coil) in distributor, if you have that style distributor. It is located under distributor cap below rotor, it looks like a round black plate in shape with wiring and connector at end of it. Remove cap, remove rotor, and lift it out, unplug from connector. Replace it in same position, then re-install rotor, then cap. They were a pretty common problem in earlier years. Engine would just quit anytime after it was warmed up, then sit for 15-20 minutes, then restart and go for a while and do it again.

ignition module

Sounds like you have a bad coil. Real common on dodge

if you think your cambelt has broken ,when your trying to crank it over ,your engine should turn over faster but will not start.,to check if your fuel pump is not working,turn the key whithout turning over the engine and listen if your fuelpump buzzess than you know your relay is not faulty,.i gather your bmw is a E39 model fitted wid a distributor cap. check your ignition coil plug pins for rust,or your modulator cables/plug connection.