1996 4Runner warms up and shuts down

dustman28
Fri, 16 Apr 2021 19:03:25 +0000
Maintenance/Repairs

I have a problem with my usually perfect 1996 4Runner 6 cylinder with 227K miles. Driving the other day Check engine light came on. Took my foot off gas and it died. It will crank but not start. Got towed home. Plugged in scanner and it wouldn’t connect and light was gone. Only weird thing I noticed is with key left in on position the idle air control was making a constant ticking.
Next day no ticking from IAC no Cel. Starts right up. Gets to operating temperature and died. Just died like you turned the key off. Had different scanner running no codes.
Leaning towards the IAC I unplugged it. Started it once it cooled off. Had a code for that obviously. Runs fine gets to temp and like flipping a light switch off it goes. So I dismiss IAC as a possible cause.
I try the ECT engine coolant temp sensor. Not the one for the dash readout. I unplug it. Runs fine and gets almost up to temp and dies. Will not restart until cool. Just cranks.
So I need some ideas for more things I can unplug, hot wire, or stick a electrical meter on.
Thanks

6 posts - 4 participants