Mechanics

WHATS CAUSING HIGH IDLE?

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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Gmanw2k6
September 4, 2012.




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?

KHLow2008
Sep 4, 2012.
Its pretty high even after its warms up but it clams down after im in gear

Tiny
Gmanw2k6
Sep 4, 2012.
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?

KHLow2008
Sep 5, 2012.
Really high ive had it measured; it reads ova 2000 hpm but when its in gear it read inbetween 900 to 1000 hpm

Tiny
Gmanw2k6
Sep 13, 2012.
You need to have the IAC inspected if there are no vacuum leakages. Did you check the PCV?

KHLow2008
Sep 13, 2012.
Pcv valve has been replace

Tiny
Gmanw2k6
Sep 13, 2012.
Have you checked the IAC?

KHLow2008
Sep 13, 2012.
No havent had it check
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Tiny
Gmanw2k6
Sep 13, 2012.
Do so. That is the main component for controlling idling speed.

KHLow2008
Sep 13, 2012.

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