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high idle problem

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Old 05-25-06, 11:21 PM   #1
YaYAReAGs3
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Exclamation high idle problem

hey whats up everybody

M car is have some idle isues..I checked the tps sensor it checked out fine..It idles at 1,5oo RPM while in park and a 1000 RPM in gear .IT doesnt make a deffrence in rpm if te engine is warm or cold..what can it be throw me some ideas on what I can check..thanks for your help
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Old 05-26-06, 10:46 AM   #2
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Turn down the idle screw. Check to see that the plate is fully closing in the tb.
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Old 05-26-06, 02:46 PM   #3
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Quote:
Originally Posted by Kaiser
Turn down the idle screw. Check to see that the plate is fully closing in the tb.
thank you ill check on that..is there away to adjust the IAC sensor or to check if its working right?
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Old 05-29-06, 09:09 PM   #4
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anybody know what else I an check on?
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Old 05-30-06, 08:06 AM   #5
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Unplug the IAC and see if it keeps running. Turn the screw down till it's just about to stall and then plug the IAC back in.
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Old 05-30-06, 10:21 AM   #6
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Quote:
Originally Posted by Kaiser
Unplug the IAC and see if it keeps running. Turn the screw down till it's just about to stall and then plug the IAC back in.
which screw ??the stop screws?
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Old 05-30-06, 10:32 AM   #7
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The screw on the throttle body that requires an allen wrench and a 8mm open end. Loosen the 8mm and turn the allen. Adjust and retighten the 8mm.
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Old 05-30-06, 10:48 AM   #8
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Quote:
Originally Posted by Kaiser
The screw on the throttle body that requires an allen wrench and a 8mm open end. Loosen the 8mm and turn the allen. Adjust and retighten the 8mm.
thanks alot you helped me out big time.
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Old 05-30-06, 11:26 AM   #9
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alright just got back and your right now my idle is finally back to normal
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Old 05-30-06, 12:13 PM   #10
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Awesome. Glad to help.
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Old 04-14-08, 08:28 PM   #11
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Um,I'm having the same issue (albeit, 1000 rpm in N), but my throttle lever isn't even contacting the throttle stop. I can twist it barely to make it touch, but it snaps back to a millimeter or two above the stop. I've traced it to the vacuum plunger thing on the front of the TB under the black cover (it kicks out, or *assists* the throttle lever when revving it looks like) - it's resting position is keeping the throttle from closing completely. Anyone have any experience with this? It has a vac line going dtraight to the TB, with black plastic spiral wrap on it.
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Old 04-14-08, 08:28 PM
 
 
 
 
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450, 98, adjusting, adjustment, es300, high, iac, idle, idles, idling, is250, lexus, lt1, problem, sc400

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