1990 Toyota pickup almost dies while idling?
Its the 1990 toyota pickup, 2.4L if I'm not mistaken with fuel injection. When i slow down to a stop or especially in park the engine seems to idle low and sputter, then rev up again then die off. Air filter is clean.
- Holey MufflersLv 78 years agoFavorite Answer
don't adjust the idle on this. you will end up w/idle fluctuation compounding the issue when the ecu tries to correct. besides, you never just up and adjust an engine to a faulty condition.
a few things that can cause this. per book.
idle air control valve, mass air flow meter, the IAC is found within the MAF meter, http://www.ncttora.com/fsm/1993/engine/33volumeai....
those can be cleaned.
or dirty injectors.
but you may want to pull codes on this. even if there's no CEL-check engine light lit. you don't need a scanner tool. just a jumper wire and your keys. here's how, http://www.ncttora.com/fsm/1993/engine/26diagnosi....
there are other things that maybe in play here. such as the TPS-throttle position sensor. but you would defiantly have CEL and a code stored for that.
also, just for gp, check the fuel filters. and check for a vacuum leak(on the hose-cracked or loose) on the fuel regulator. check for a fuel leak there as well.
tip; if this slowly came on, then it's very possible this just need to be cleaned. otherwise, likely a component issue.
if you're unsure of any of this, do make sure you take it to a reputable ASE shop or the dealer for diagnosis.
good luck. owner 93 toy pu V6, 88 22/20RE hybrid.Source(s): all links sourced via the genuine FSM for this. online, http://www.ncttora.com/fsm/1993/engine/26diagnosi.... for dl, http://www.ncttora.com/fsm/1993/1993.zip parent pg, http://www.ncttora.com/fsm/ all FREE!
- adam/pennyLv 78 years ago
Try to get someone to turn UP THE IDLE. Usually only one screw involved.