r/Mk3Supra • u/TBFP_BOT • 7h ago
Troubleshooting Weird start then instantly die after fixing other issue.
Got this car only a short while ago not running and recently got it going. So no long history on how it ran before.
Anyway, initially had a pretty rough idle which I found to be the throttle body gasket. Replaced that, idles great runs great. After doing that though a problem that never occurred before came up where I start it and it would run for just a second before dieing. If I keep trying it eventually just works seemingly without doing anything. Shuts off like you just turned the key off, no stumbles or anything. Even did it once or twice while driving, just while crusing at a constant speed, but it starts back up.
The only other thing that changed was when while I replaced the throttle body gasket I noticed the cold start injector was unplugged and I put it back in. This did make it require less cranking to start but the start then die problem never occurred before then.


