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Originally Posted by indyhoosier
92 Astro 4.3(Z) 2 weeks ago it died while driving and wouldn't start back up.Strong fuel odor while trying to start. Drained battery and had to jump. Someone convinced me that the catalytic converter was bad so we cut it off. Van started after about 5 minutes, I figured it was flooded. Ran good for three days but died again while driving. It wouldn't start, just turned over.Drained battery, had to jump. Towed it to a friends house and left there overnight. Came back next night and it fired right up. I drove it home, ran decent. Hooked a Pro-link 9000 reader up and found no trouble codes, probably because battery had drained. Drove car for 4 days and it died on me this morning while I was driving. Just flat out dies, no sputtering or anything. I immediately hooked reader up and it won't communicate with the ECM, just says "NO DATA". Is my ECM bad or should I be looking somewhere else? ECM is not testable and not returnable. Any help would be appreciated!! 
Indyhoosier |
The key is proper testing when it does it.
You have to catch it in the act.
First thing make sure the battery and charging system is good.
Then when it dyes check for lose of spark or fuel/proper fuel pressure with no fast leak down.
If it has good hot blue spark to all spark plugs and fuel check for injector pulse.
If no injector pulse give the old PCM a twist or tap test.
MT