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EJ25 idles at 2500rpm - Solved

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BlueV2 Seriously Crusin Dubber

193 posts · joined Apr 2008 ·

#818863
I have just put the motor back in the buggy behind the new Subaru gearbox. It has been 4 months since this thing has run, and now the idle is at least 2500rpm.....goes to 3000rpm when it warms up!!.

Moving the ICV makes no difference. I dont have any ECU error codes to say that I haven't connected anything up.

When I disconnect the cable to the ICV, the idle drops right down, but it runs like a hairy goat.

What else should I look for ? or could it just be that the ICV is stuck ?

Cheers,
Mark
Sharpbuilt V2, EJ25, Subaru 5 Speed, Falcon rear discs, Heater & A/C, Rack Steering

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#818867
Assuming it's not something silly like and an air leak or your throttle is cracked open slightly (maybe cable not slack enough?) Check your TPS reading if its not throwing a code

BlueV2 Seriously Crusin Dubber

193 posts · joined Apr 2008 ·

#818869
I checked the throttle cable, but it is fine. I doubt it is an air leak, but I will check. I only have the engine light to check error codes, I dont have a scanner. Some idiot cut the scanner connector off the loom !!!.......
Sharpbuilt V2, EJ25, Subaru 5 Speed, Falcon rear discs, Heater & A/C, Rack Steering

BlueV2 Seriously Crusin Dubber

193 posts · joined Apr 2008 ·

#818916
I've solved it, but not entirely sure how :-).

I took the top off the ICV to make sure that the valve wasn't stuck. It didn't appear to be so, I put it all back together and it worked!!!
Sharpbuilt V2, EJ25, Subaru 5 Speed, Falcon rear discs, Heater & A/C, Rack Steering

Bugaru03 Commited Dubber

70 posts · joined Mar 2008 ·

#818943
ha ha ha, magic is always the finest solution!!!
...always there is someone faster than you...

www.bugaru.gr

ElusiveStranger Officially Full-On Dubber

330 posts · joined May 2006 ·

#819197
BlueV2 wrote:I've solved it, but not entirely sure how :-).

I took the top off the ICV to make sure that the valve wasn't stuck. It didn't appear to be so, I put it all back together and it worked!!!
Maybe you free'd up the carbon/oil deposits. Carb cleaner works a charm if it happens again

BlueV2 Seriously Crusin Dubber

193 posts · joined Apr 2008 ·

#819242
I actually have half a dozen cans of the Subaru "upper engine cleaner", I just cant find it after we moved house !!!

Once I track it down I will run another can through, but for now it seems to be working well.
Sharpbuilt V2, EJ25, Subaru 5 Speed, Falcon rear discs, Heater & A/C, Rack Steering

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#819477
canister purge on the TB