WHATS CAUSING HIGH IDLE?

1995 Toyota Corolla

Tiny

gmanw2k6

September, 4, 2012 AT 8:20 PM

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?

9 Answers

Tiny

KHLow2008

September, 4, 2012 AT 8:24 PM

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?

Tiny

gmanw2k6

September, 4, 2012 AT 10:08 PM

Its pretty high even after its warms up but it clams down after im in gear

Tiny

KHLow2008

September, 5, 2012 AT 12:03 PM

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?

Tiny

gmanw2k6

September, 13, 2012 AT 3:25 AM

Really high ive had it measured; it reads ova 2000 hpm but when its in gear it read inbetween 900 to 1000 hpm

Tiny

KHLow2008

September, 13, 2012 AT 7:18 AM

You need to have the IAC inspected if there are no vacuum leakages. Did you check the PCV?

Tiny

gmanw2k6

September, 13, 2012 AT 6:38 PM

Pcv valve has been replace

Tiny

KHLow2008

September, 13, 2012 AT 6:53 PM

Have you checked the IAC?

Tiny

gmanw2k6

September, 13, 2012 AT 7:08 PM

No havent had it check

Tiny

KHLow2008

September, 13, 2012 AT 7:19 PM

Do so. That is the main component for controlling idling speed.

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