Ok....
The metal collar is now removed and the hoses all back together correctly.

However....
The car still decides to lurch and stuggle at about 4 1/2 to 5 thousand revs. It doeanst mind pulling and does so fine up to that point in all gears but in second to third gear change it just goes doolally and sort of gives up the ghost....

now im a bit concerned that something else is playing up, or is it that there is just a lack of air getting in there at that rev range, ive got another cold air feed to be fitted in the am and my new heat shield, so will see then but i doubt its going to make a difference.

 

sounds like you have an actual problem. have you changed anything else like spark plugs or anything?

 

When i put my IK on i reset the ecu and went for a bit of a drive .

Scoobypedia | Trusted knowledge for everything Subaru | Scoobypedia browse tells you how.

When did you buy the car and what did it have done (as in spark plugs changed,service etc)

 

cars been serviced and checked out by my mechanic next door.
After talking to another person this morning we think that it could well be too much air not enough fuel, so ECU reset required... apparently.

It sounds sensible so going to give that a go, then drive and see what happens, if that fails then back to square number one, well square two anyway.

 

Hmmm might take that metal bit out of mine and see what the difference is.

 

not really noticed any difference, just got scared with peoples reactions to it...

lol

 

Got my car booked into Triton next week so might just see what they say then

Steve

 

well itll be worth posting up in this thread whatever they say.

 

Does it really make that much difference?

I'm about to go the other way - take out an Apex'i induction kit (because I'm not too keen on the noise) and put back a standard airbox. (In fact, if you have the standard parts you've just taken off and would like to do a deal, drop me a PM!).

Hope it's nothing too serious - I just get really nervous when I read about this sort of problem. Hopefully I don't have that metal collar installed at all, sounds like a PITA...

 

Is that Trtion @ Hurn Airport?

 

Yeah, taking it on to get checked for something else, you been there before ? are they ok ?

Steve

 

Yep as they are my local subaru specialists,i've used them for 4 years and they've been very good imo.
Some of the extra bits they sell (fuel pumps,boost controllers etc) you can get cheaper but their quality of work ,for me, has been very good.

 

im sure it just needs a bit of playing around. I have noticed a better pull on hard acceleration but i just need to sort out this tiny issue. That collar would be easy to check for, and even though it took forever to install it was a 2 second job to remove...

 

going to go to work this evening and do the ECU reset, only question i have is can this reset cause any issues with regards to actually doing more harm than good or am i just being a big fat fairy wuss

 

you're being a big fat fairy wuss
It restores the default settings of the ecu

 

ok have you still got the problem with car going mad at 4000rpm? if so it could be your spark plugs. when i got my import it had some weird plugs in there. i spoke to ngk and they sent me what they thought where the right ones. after installing them the car got to 4000rpm and then just spluttered and jumped around.

i found out that the plugs where wrong and i needed a gap size of 0.6mm on the plugs and the guy at ngk had sent me 1mm gap plugs. this may be your problem if its only happened since your service.

as for the reset its fine to do. just make sure you do what it says about driving for a mile or what ever with no boost. try and find a nice empty road.

 

Woody, the problem has only occured since putting the induction kit on. I haven't yet reset the ECU but will do later this evening. Therefore dont think it could be anything else apart from too much air vs fuel or sonething similar.

Thanks tho.

 

hhhmmm it could be your maf sensor. i take it you put it back in ok yeah? this would cause the problem your talking about but i think it does it more often than just 4000rpm. how long have you had the apex in for? you have to support the inlet pipe as lots of vibration has been known to kill your maf sensor. cable tie the pipe or use fixing brackets.

 

woody the apexi kit comes with two support brackets one to go to the suspension turret and another to go to one of the holes where the old airbox cam out, its in there pretty tight and doesnt move the brackets support it just behind where the new filter is see pic;



Apexi kits only been in a couple of days and only does it at between 4000 to 5000 when accelerating hard which makes me think its air/fuel ratio with ECU.

 

i know what you mean. i just didnt get that much of a problem when i fitted my k&n. i didnt even get that much trouble when i fitted my font mount intercooler.

i did have some extra fuel being tossed out the exhaust but nothing major. car still ran ok.

if i was you then i would put the old airbox back in and take it for a quick spin. swapping over should only take you 10 minutes now you know what your doing. if you got some time at the weekend then give it a go. this will atleast let you know its defo something to do with the airbox.

 

yep cheers

 

oh no... still havent done anything yet, but a mechanical nut that i talk to has now suggested that it could well be the boost solenoid

then i read this also....

https://www.scoobynet.com/general-te...-boosting.html

 

The next post in the saga. I managed to get out of the office for five minutes and down to the car. Hunted around for the green and black connectors to reset the ECU... hmm

climbed headfirst into the footwell and had my mobile phone giving me some light... With that rested on my forehead i noticed the little buggers all taped up together tucked away right up into the dash.

Un taped them, turned ignition off as it was now running at operating temperature, plugged black to black, green to green (which was more like orange to orange under the lighting conditions i had ) ignition round to on position and then foot down on accelerator, then back to half.... Check engine now on. then off i drive for a little while and the check light starts to flash at me nice and regular like. At this point the engine noise was nice and rich, didnt sound normal which i presume was as it was setting itself.

So i stopped turned everything off and unplugged.......

Now to test, i started nice and gentle like, followed by getting heavier and heavier with my right foot.

End result was that it did stutter once, but only once i was driving for about 20 minutes and it pulled like a dream, right through the rev range on all gears all the way up to 6500 revs.

So hopefully this is now sorted, like i said it did stutter the once but as the ECU had just been reset i'll put it down to that.

 

hmm, thought this had gone away, maybe it has maybe not.

It stuttered a couple of times on the way home from work this morning but only when i had my foot to the floor, if i dont get to the floor its fine..... hmmm

 

check the coil packs and plugs (and the gaps) but could be the MAF

 

trying to deal with this all myself as a learning process... but already getting rather fed up lol.

Im going to shove the old box back on and see if it does it then, if not then must be something to do with induction, if it does then i've ballsed something in the swap

Time to find the subaru tuners in essex i suppose (or at least start preparing for that lol)

 

PolarPerformance

JollyGreenMonster.co.uk

2 tuners near you

 

you are officially my guardian angel lol

 

No problem, just don't like seeing people getting dissappointed with their impreza if something isn't right

Another local company to Essex Subaru Breakers

 

its going in to Xtreme Scoobies in Boreham on Monday for them to do a full diagnistic check

So even though thats only going to cost a tiny bit of cash, im sure the end result will be a lot more.....