Engine keeps dying
09-08-2013, 08:34 PM
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Engine keeps dying On my last nerve! I scanned the ECM for codes, and got a low coolant temp, that's all. I've just replaced the opti, thinking it was going out, and it still dies on me. It runs for a little bit, then the idle seems to pick up just a bit and dies soon after. It won't restart at all either, like it has no spark. I've swapped the ignition module with my Nephew's 94, and his runs fine with mine while I have the same problem. I also swapped out the coil, and disabled the ignition box. I'm out of ideas, any help is appreciated.
09-09-2013, 06:29 AM
#2
simple test
get a spare spark plug.
when it dies, remove a plug wire and put it on the spare. put end on ground in car chassis.
turn over engine and report back if u got spark.
next would b to check fuel pressure w a guage.
get a spare spark plug.
when it dies, remove a plug wire and put it on the spare. put end on ground in car chassis.
turn over engine and report back if u got spark.
next would b to check fuel pressure w a guage.
10-05-2013, 11:48 PM
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Ok, back to this again. To answer the looming questions: I still have spark after it dies, fuel pressure is good @45psi.
I have a Walbro fuel pump.
A friend said to check the vats, but I never have any of the typical vats problems. Another friend said to check the ignition switch near the bottom of the steering column. I've never heard of anything like that. Anyone have any thoughts? It's gotta be some lame non essential shitty feature GM built into the ignition system! I just don't know what.
I have a Walbro fuel pump.
A friend said to check the vats, but I never have any of the typical vats problems. Another friend said to check the ignition switch near the bottom of the steering column. I've never heard of anything like that. Anyone have any thoughts? It's gotta be some lame non essential shitty feature GM built into the ignition system! I just don't know what.
10-06-2013, 04:15 PM
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OBD II shuts injector fuel down if detects no cyl fire - don't know if OBD I does that but u could try to reset the ECM by R&R the ECM fuse.
Don't mess with the steering column unless u know what u are doing and can set the ignition switch operating bar.
If it starts then shuts down then something is telling it to do so - ECM. But for what reason? No codes is strange. I dont have the factory manual for '93 but it should have a diagnose for this. U need the diagnose flow chart for '93 - before u waste any more $$$. Heck a shop manual is <$100.
cardo0
Don't mess with the steering column unless u know what u are doing and can set the ignition switch operating bar.
If it starts then shuts down then something is telling it to do so - ECM. But for what reason? No codes is strange. I dont have the factory manual for '93 but it should have a diagnose for this. U need the diagnose flow chart for '93 - before u waste any more $$$. Heck a shop manual is <$100.
cardo0