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1991 Toyota 4x4 22re .On cold start the idle

1991 Toyota 4x4 22re .On cold start the idle starts at 1700 rpms and slowly rises to about 2500rpms.It slowly comes down as motor warms up. It doesn't matter what temperture it is outside, summer or winter .

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  • Anonymous Mar 19, 2014

    1991 chev lumina will not start when it's cold outside but will if its warm outside and does it matter what size motor

  • Anonymous Mar 19, 2014

    1991 chev lumina will not start when it's cold outside but will if its warm outside and does it matter what size motor and is it a censor



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Put a jumper wire between the bottom two pins in the plug for the throttle position sensor, if it idles down you need to replace the idle throttle position sensor

Posted on Apr 09, 2009

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Take car for trouble code at Autozone or similar store for free. it is probably the idle position sensor.(IPS)

Posted on Feb 19, 2009

  • pennytommy19 Jan 14, 2013

    sorry dude it has to be a 96 and up before any parts store can run the codes for you



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Why does my car idle at 2500rpms


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Ok so here's the symptoms on a cold start it idles

Check for vacuum leaks. On a vehicle without a mas air flow sensor a vacuum leak will raise the idle.

check to see if there is a specific cylinder causing the misfire. Remove spark plug wires one at a time or unplug injectors one at a time. If the engine rpm changes that cylinder is working. If there're is no change than that cylinder is not working.

If there is a specific cylinder that is not working than you can check for spark, compression, and fuel on that cylinder.

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Try cleaning the mass air flow sensor...and also the idle air control vavle...This is your next least costly attempt to fix...had similiar problem...Hope this helps.

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I need help with my 89 accord Lxi, EFI When I cold start it the RPMS shoot up to about 2000, drops to about 1700, climbes back up to 2000, stays there for about 4min. Shoots up to about 2300, stays there...

Have you tested the IAC (idle air control) sounds like it's sticking, I have tried to clean them but it was short lived, so once you have determine it's bad (after market $85) I would replace it and solve the problem.

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You need to get your engine coolant thermistor checked and tested. This is what tells the ECM when the engine temperature is at normal working temperature and turns the idle down.
But when the idle won't come down from cold to warm this is usually the main fault.
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