My mate has a 92 wrx and it has a problem heres goes any advice would be great to help him stop spending on the fooker and getting no where

When the car has sat for a day or 2 and is cold when you first drive it it goes like fookBUT when it warms up it holds back still drives well but just aint got the boost that it should be doinghe has changed all the sensor's and the wiring loom just incase a broken wire etc etc do you have any other susjestions of what it can bei have just spoke to Andy Napier (AWD in perthshire)and he says it could possibly be the turbo maybe seezing up when warm (but it still boosts and looking at the boost gauge working as normal) also Andy said it could be the feuling but as i said the car still runs fine just holds back my mate thought it could be coil packs but not wanting him to go buying more and no progress on the problem he has tried everyone to help him but up here there aint many people Andy is good with the scoobs but once again not wanting to go through to perth to find it could be something right in front of our eyes that my mate hasnt checked yet any advice would be great thanks for taking the taking to read this
cheeRS
Craig
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air flow meter?
apparently they are bad for going and have similar syptoms to what that sounds like,and even more likely if hes got an aftermarket filter on it.

 

Mate had a problem with a connector that's near the air filter. air flow meter maybe?

i had similar issue in my flint saff where it'd be fine cold but when warm was a misfiring stuttering cunt. was fucked fuel tank and filter. filter been changed?

 

Ask the people on www.scoobynet.co.uk there very helpfull

 

Davie and cho i will look into it as i have the car at the moment as he is on holiday nad would like to cure it for a suprise for himi am sure it does have an after market filter on it will check and report backthanks guys


shiftyoldscoob been on treid it and no joy

 

the connector was on the hose to the cone, i'm pretty sure. it kept popping off and sometimes the car cut out and sometimes it just banged and had less boost.

 

shiftyoldscoob is there any chance you can put it up if your on maybe he hasnt explained it like i haveif you could do that bud your the mancopy and paste it of herethats if you have the time

 

maf common problems on scoobs,
what mods has the car got?
also well worth doing this http://forums.sidc.co.uk/index.php?showtopic=137690

may flag a potential problem

 

just cheked that chop they seem to all be on fine and tight

 

the mods are

Full ss exhaust (blitz)
blitz mushroom air filter
chip
blow off valve


nothing mental but when its cold it goes wellwhen it warm up it holds back

 

thanks for that but some how the light on the dash has been disconneted so cant do that

 

check its been mapped for uk fuel and have it set up would be my plan mate, unless thats already been done.

however a lot of scoobs recuire a remap after each modification, so if anythings been done that maybe a good idea

 

ok craig no cel light is not good sign means its most likely been chipped badly

with those mods it would need at the very least a decent chip or ideally a remap, blow off valve check that for operation too has it got a manual boost controller?
it does sound like the classic scooby setup just waiting for a big bang

edited to add the cel light will be disconnected because of the chip making it stay on all the time only problem is then if there is a problem u don't have a working cel light to warn you.
if there are no other obvious things wrong ie: pipes off ect then i would seriously look at getting a better chip, especially if its a old one, i have a spare early 4 pin ecu for Ł30 as well.
you need to find out which turbo it has td05 or td04 then u can get a chip to suit.

 

its been remapped for uk feul thanks for your input though

 

Dlatch it has been remapped but the light on the dash has been disconnected the engine feels a stong quite one

 

ohh also boost guage fitted? whats it holding?

 

oh its had a remap? must be old piggy back board if its messing with the cel

i would try a standard ecu just to see if you get same symptoms or a run on a rolling road which will cost money

 

tbh not boosted it when he comes back i will get him to do it and report backcheeRS for helping Dlatch top man you are

 

tried standard ecu and the new one iam sure but its still the same

 

they buggers for bad earths too

real pain to trackdown, also get bad heat soak which leads to the ecu knocking off the boost.
wish him luck and the guys on scooby net pretty helpfull too they get plenty practice with tech issues

 

Why not just take it to awd craig ? ,although i hear they know how to charge lol.

 

Dlatch are you on scoobie net bud?

 

Kev they are good but are exspensive had a few evo's into them but had about a tenner of change of a grand they aint fooking shyand thats no joke about the money they told my mate the tyres he had on his evo were no use on itso he bought new tyres,new brakes,blitz stuff,avcrs and few other things was only ment to be a quick service and that cost a few grand as they got my mate hyped up but they are good at the jap stuff

 

Yeah i heard they do a blinding trade in new fuel pumps and fuel reg's lol.

 

well Andy said it could be down to feulling

 

Thats what they'll try to sell you,guaranteed.

 

Just off the phone to my mate he has just fitted an uprated walbro feul pump to it so they aint selling him or me anothercheeky fookers lol

 

new pump the problem maybe? or did it do this before

 

Have you checked the Air Flow Meter yet? The symptoms ar spot on for that. Unplug it and see if it changes anything, like running the same cold or warm?

 

i have had loads of jap spec subarus,some direct of the boat and they have not been remapped,the advice i got off teg sport (they deal with prodrive) was run it on super and use octane booster if your gonna use it hard,no probs with that advice here Craig.

also regards the car not running correctly my mate had a direct import that started doing that and it had just come off the boat and it was a fooked actuator,put a good second hand one on from a specialists and the car ran right and did the Bizzo

 

did this before


tryed that and when taken it off it was cutting out


Hi Karl how are you getting on bud?as for the actuator it feels more of a break down in electrics or spark tbh could it be a coil pack maybe guys

 

alright Craigy matey,i have had coilpacks go on the early wrx's and its just a miss,they sound like they are missing anyway but they don't like die and then pick up or start ok then tail off. constant annoying miss is a coilpack.

 

nothing daft like boost hose going soft and sucking in?

 

Jay i will check that tommorow it might be good thinking chap just like the rst's were famous for

 

they do suffer with the coilpack on sparkplug, there normally cracked by people tightening them up incorrectly. To check them, remove the coilpack, pull the rubber plug boot of the end & see if there is any cracking.
As said, maf can cause a problem, sometimes they can be repaired.

 

Guzzler i have heard of that thanks for the input will check them in the next couple of days and report back

 

Had same issue on a 96 uk turbo. Was a quick fix for me, I reset the ecu and it then ran ok. I had same issues, fine cold n held back when hot. Worth checking.

 

Craig how do you reset them and isnt a uk diffrent from an import?pretty sure thy are but any advice would be great bud

 

ECU reset can be done by disconnecting the battery. Have you checked for fault codes because they show up the check engine light when the MAF goes?

 

Get a wideband on it and it will be very obvious if its a fuelling problem or not.

If it isnt then its probably the knock sensor pulling out timing, its probably on the verge of det when cold and then when hot its tipping it over the edge.

If it was the coilpack or similar it would feel more like a misfire generally rather than just feeling lame and flat and generally gutless.