My 2002 Toyota 3RZ-FE engine pickup(190000km), started stalling occasionally on cold starts(sometimes hot as well but mostly cold) last year.
The engine starts up but stalls immediatley but then will start and run fine on the second attempt.
There does seem to be a bit of a rough idle when cold.
But if I disconnect one of the leads to the battery and leave it for an hour to reset the ECM the stalling problem and slightly rough idle disappears.
But after +/- 4 months its back?
Could it be a sticky IAC valve?
The engine starts up but stalls immediatley but then will start and run fine on the second attempt.
There does seem to be a bit of a rough idle when cold.
But if I disconnect one of the leads to the battery and leave it for an hour to reset the ECM the stalling problem and slightly rough idle disappears.
But after +/- 4 months its back?
Could it be a sticky IAC valve?
Last edited: