EJ22 revving like fury! Suggestions?

Transparu Seriously Crusin Dubber

154 posts · joined Feb 2003 · 10 Jul 2009, 8:11 pm

#723362

Hi Folks,

30 minutes ago I returned from a 4,600km drive from Brisbane to Innamincka, Lyndhurst, Marree, Birdsville, Blackall and home in my '82 Transporter. A couple of days ago the engine (EJ22) started revving around 2,000rpm at idle (a little faster until it had warmed up). This was a bit of an issue in that the vehicle is an automatic! I managed to check a number of the connectors whilst away and moved all the computer connections and grey plugs hoping that there may have been some dust somewhere in one of them. I didn't achieve any success.

I am very pushed to get this sorted tomorrow am and am wondering if people have experienced such a large increase in idle speed? I'll trawl the online archives when I have had some sleep, but though someone may go online before then and be able to relate a similar experience AND solution.

Thanks folks,

Dave

PS The trip was GREAT and easily achievable in a vehicle in reasonable repair.

seagull Compulsive Aussie Vee Dubber

4,979 posts · joined Dec 2003 · 10 Jul 2009, 8:16 pm

#723365

You may find the idle controll valve has a carbon build up in it . You can remove it and clean it out. Also get a can of top end cleaner from subaru , or super crap !, read the rear of the can as it tells you what to do . Ps : Dont touch the small screws with the dop of white paint

Looking for that special lady : PM me for coffee & cake

Transparu Seriously Crusin Dubber

154 posts · joined Feb 2003 · 10 Jul 2009, 9:47 pm

#723396

Thanks Neil,
I had a problem with the TPS once before that cleaning fixed. I'll look at it tomorrow.

Dave

seagull wrote:You may find the idle controll valve has a carbon build up in it . You can remove it and clean it out. Also get a can of top end cleaner from subaru , or super crap !, read the rear of the can as it tells you what to do . Ps : Dont touch the small screws with the dop of white paint

Baja Wes V6 Baja Pioneer

3,119 posts · joined Aug 2002 · 10 Jul 2009, 10:53 pm

#723406

I'd be looking for air leaks after the throttle body. Maybe PCV valve, hose, connections.

Wes - www.offroadvw.net - 200HP Quad Cam V6 in a VW Baja - with climate control... 🙂
www.taylorcycles.com.au - My DH MTB racing brothers shop.

Transparu Seriously Crusin Dubber

154 posts · joined Feb 2003 · 11 Jul 2009, 3:49 pm

#723485

Thanks Guys,

Thanks for the replies. I had checked hoses and the throttle "resting position" during the journey.

I checked all the air/vacuum hoses etc again and nothing was amiss. Even sprayed gas around and the only change occurred when I sprayed near the air filter. I lubricated anything that moves!

There WAS a great deal of of dust (and stones) around the engine, but not in crucial places and the throttle seemed to be doing the right thing.

I re-adjusted the the TPS gap after checking it was doing what it is supposed to do. I have not got into cleaning the insides (very difficult when the EJ22 is in a previously air-cooled van because the air inlet is so close to the firewall). I may yet have to look at that. I haven't yet been out so haven't got hold of the top-end cleaner, but will asap.

I think I have essentially solved my idle problem but am wondering why/how (I reset the throttle gap). I did tap the TPS fairly vigorously, so maybe dust was dislodged. I was surprised that it appears there are a couple of triangular holes that could let dust into the unit though it is not possible to open it without drilling a couple of brass rivets holding everything together - so I left that for another time.

Thanks again guys.

Dave

PS on the trip I was in the Birdsville c'van park with 100+ 4WD vehicles. The VW was the only 2WD there! At Yowah last year I was abused (by a mechanic) for having a VW so far "out"!