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My car randomly shut off while driving today

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Pozobyt

10+ Year Contributor
177
0
Jun 22, 2010
lucedale, Mississippi
It's a 99 eclipse N/A. I recently did an auto to manual transmission conversion.
today, the car started normally, and drove perfect, but then out of nowhere, the car shut off. headlights and everything. So I put it in neutral, re-started it, and kept going, it continued to drive fine. I got gas, and restarted the car like normal, then on my way home, when I let my foot off the gas, and pushed the clutch in, to slow down, and the car shut off, not the headlights or anything, but it like stalled. then when I went to restart it, it wouldn't idle, unless I kept my foot on the gas. I got it home, let it sit for a second, restarted it, and it started and idled fine. and Ideas?

I did not change the ecu because I thought that the only difference was the rev limiter, could that be it?

also, my battery terminals were kind of loose, but I don't think that would keep the car from idling.
I rely on my car heavily and really need help solving this.
 
Last edited:
Why you are driving a car with loose battery cables i do not know, but I bet its the problem. I had the exact same problem, turned out to be a bad battery. I could get it started but when i pushed in the clutch the car stalled. I thought the car could run on the alternator but it turns out it will not. Tighten cables, charge battery and drive.
 
Well I started it this morning, and it started up no problem. so I tightened everything, checked for vaccum leakes, cleaned my IAC and throttle body.

I guess I wont know if it fixed it till I drive for awhile.

Also: Just put the car back together after the swap and I guess forgot to tighten them down. I didn't know they were loose till I got home.
 
I had a similar problem. A new ECU fixed the issue, but the problem reappeared later - not in the magnitude like before, but 2-3 times. Then this spring my battery died and I got a new one, haven't had this problem since. So might very well be a bad/loose battery cable or battery.
 
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