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[kanaalinarvoitus]

My omega is idling high when reached normal temp (about 1500rpm). I have cleaned ICV, chanced MAF, looked for airleaks. When disconnecting the ICV and plugging it back, idle lowers to normal for a 5 seconds, then back to 1500-2000. What to do? Could it be temperature sensor or what?

[zirk]

What did you clean the ICV with?, Crab Cleaner?, something flammable?, is so, take the car for a good blast around and report back.

Failing that I would still be looking at air leaks.

[kanaalinarvoitus]

I cleaned it with crc oil, and compressor air. Although didn't look so bad in the first place. I could search air leaks with start pilot or something similar.

[moggy]

What did you clean the ICV with?, Crab Cleaner?, something flammable?, is so, take the car for a good blast around and report back.

Failing that I would still be looking at air leaks.

I think this has another use.lol.Carb.

[kanaalinarvoitus]

https://www.dropbox.com/s/u2524qasbmubmbr/2017-04-13%2018.24.38.jpg?dl=0

Some progress! Found a tiny hole in this T-piece. Patched it up with tape ( ), then ran the engine hot. Idle was definetly lower (800-900rpm) for about 5 mins, then back high . Does the ecu need to be reset or something? Where can i buy this T-piece, part number or link?

edit: Pic not working. Anyway the t-piece is the one closest to the hole where the oil is added.

[TheBoy]

Do the throttle butterflies FULLY close?

[kanaalinarvoitus]

It was the tiny hole in t-piece (strange). I made a temporary fix from rubber hose and hose "clip", seems to work now. Idles perfectly at 600rpm. Thanks for help everyone!

[moggy]

Do the throttle butterflies FULLY close?

Yes with crab cleaner.LoL.dEAN

[zirk]

What did you clean the ICV with?, Crab Cleaner?, something flammable?, is so, take the car for a good blast around and report back.

Failing that I would still be looking at air leaks.

I think this has another use.lol.Carb.

Do the throttle butterflies FULLY close?

Yes with crab cleaner.LoL.dEAN

Carb Cleaner does have other uses. 

You've not been sniffing it per chance have you Dean. 

[moggy]

What did you clean the ICV with?, Crab Cleaner?, something flammable?, is so, take the car for a good blast around and report back.

Failing that I would still be looking at air leaks.

I think this has another use.lol.Carb.

Do the throttle butterflies FULLY close?

Yes with crab cleaner.LoL.dEAN

Carb Cleaner does have other uses
You've not been sniffing it per chance have you Dean. 

Yes it cheaper than crack.