Whats causing high idle?

Tiny
GMANW2K6
  • 1995 TOYOTA COROLLA
  • 11,300 MILES

I have a 1995 toyota corolla and it has a very high idle when starting I have replace the idle valve and the tps sensor I even had my "service engine" light check but it doesnt say anything about it what else am I missing?

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Tuesday, September 4th, 2012 AT 8:20 PM

9 Replies

Tiny
KHLOW2008
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It is equipped with a cold start to increase the idling speed when engine is cold. How high is the starting idle speed and after warming up, what is the idling speed?

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Tuesday, September 4th, 2012 AT 8:24 PM
Tiny
GMANW2K6
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Its pretty high even after its warms up but it clams down after im in gear

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Tuesday, September 4th, 2012 AT 10:08 PM
Tiny
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Either there is a vacuum leak after the throttle body or the IAC is not working correctly. It could be stuck open more than it should and how high is pretty high?

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Wednesday, September 5th, 2012 AT 12:03 PM
Tiny
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Really high ive had it measured; it reads ova 2000 hpm but when its in gear it read inbetween 900 to 1000 hpm

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Thursday, September 13th, 2012 AT 3:25 AM
Tiny
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You need to have the IAC inspected if there are no vacuum leakages. Did you check the PCV?

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Thursday, September 13th, 2012 AT 7:18 AM
Tiny
GMANW2K6
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Pcv valve has been replace

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Thursday, September 13th, 2012 AT 6:38 PM
Tiny
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Have you checked the IAC?

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Thursday, September 13th, 2012 AT 6:53 PM
Tiny
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No havent had it check

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Thursday, September 13th, 2012 AT 7:08 PM
Tiny
KHLOW2008
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Do so. That is the main component for controlling idling speed.

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Thursday, September 13th, 2012 AT 7:19 PM

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