High Idle

[GT-Tyn]

Hello, i have a question?

After a trackday on circuit Zandvoort(holland)my idle speed didn't drop to 850 RPM

It's now 1200 RPM.(and on a cold start it is 1700 RPM)

I have a 3sge engine 3e gen.(158 hp)

Can somewone help me ?????? :ffs:

[GT4 BOOSTER]

firsly this is the celica forum and you own a carina. from cold a celica spins at 1700 to 2000 rpm , then drops to the 850 mark ,perfectly normal.if its running high now, take off the earth lead or take out the EFI fuses , this should correct the ecu and return to normal.

[GT-Tyn]

Yes sorry but there is no carina topic.

And the engine is the same as the celica engine.

i did what you saying ,but no results.

And the ecu didn't give a trouble code!(before resetting)

the timing belt is not jumped a tooth.

I have clean the throttle body ,it was dirty YES,but the problem is still there.

I try to tune up the idle but the adjust screw is already on the bottom(to his end), so i can't get the idle lower with the adjust screw .

And i checked the isc valve but thats good.

And the air intake temp. sensor is also good.

[GT-Tyn]

is there nobody that can help me??? :ffs:

[GT4 BOOSTER]

try !Removed! the throttle cable back as far as it will go , my celica idles erratic at times , then some days it runs sweet as can be.

maybe the oxygen sensor has seen its day , mind boggles.

[GT-Tyn]

the oxygen sensor is also oke.

And the cable is already tuned up.

[GT4 BOOSTER]

try unplugging the sensors on the throttle body 1 at a time until the revs die down , i think its the cold start thats jammed on or broken ,on mine its the one on the right of 2 ( blue multi plug )

[GT-Tyn]

!Removed! hell I’ am very good humored YES!!

And as first i want to thank you ,with sharing

You’re own experience and science !

i have affected the problem, it’s the vacuum valve of the power steering. It's under the engine on the

right side of the car.

i will post under the massage a couple of pictures from the problem i had.

Maybe i can help someone with this in the future, having the same problem's as me.

It cost me a month to find it.......

Here it’s broken

And here it’s fixed

:D

[GT4 BOOSTER]

congrats , and arn't you pleased.

[GT-Tyn]

Yes, lol