Joe's Rs

I have a 92 RS 5.0 TBI. For the past few months i have had a stalling problem usually when it runs for awhile. So i figured it was the oil pressure. However i put a gauge on it and its running fine.

Now out of the blue I cant get it started at all. Crank but no spark, it has fuel. I changed the ignition coil, pick up coil, ignition control module (twice just in-case it was defective) and the cap and rotor.

I have power going to the ignition coil, no spark. Everything is grounded and powered correctly. If i wiggle the distributor ill get a intermittent spark from the ignition coil with the key on.

I am at a total loss, please someone help ASAP!!!!!

Thanks in advance,

Joseph Liberta

Tuned Performance

iTrader: (92)

Have you checked the pink and white jumper wires from the icm to coil for a open ?

Joe's Rs

Good point, I will be checking that tomorrow. Any other ideas?

Tuned Performance

iTrader: (92)

You can think of the ignition as totally separate from the ecm although if you have some one crank it over and you see the injectors pulse you know the ecm is receiving a distributor reference pulse to the ecm so the ecm will control the injectors. The pink wire jumping from the icm is the power witch is the pink wire to the icm from the coil and the white wire is the coil trigger. The other pink wire going to the coil is power coming from the ignition switch and a tach wire if your car has a tach.

kentuckyKITT

iTrader: (4)

This is just a long shot, but I had a smiliar thing happen to me awhile back on my 89 305 TBI. Car was running fine, parked it at a friends, got in...crank crank crank, no start. After doing all the tests, found out several things were wrong...basically my whole system went bad since it was FACTORY.lol The ignition module fell to pieces when I removed it. You couldn't even see the contacts on the distributor or rotor from all the corrosion. I'm surprised it started it all when I bought it. The coil was actually still good. The pickup coil was fine as well. Anyway, after I replaced cap, rotor, module, and coil...I still had an intermittent issue with spark and it turned out to be the coil wire was not seating firmly on the coil or the distributor.

Even though it seemed to "snap" on there, it was actually not and rising back up causing a no spark issue. I replaced the coil wire and that solved the problem. Like I said, long shot, but it's easy to check and cheap to replace.