4evermad

iTrader: (1)

Ever since buying this car its been trouble . in the first hour tyre went bang on motorway . week later a new maf sensor then it runs ok 4 a bit but now,it has a surging problem under 4000rpm it had so many new parts im sick of it.
NEW PARTS IN THE LAST SIX WEEKS
1 new maf again , and no it on a apexi panel filter .
2 o2 sensor subaru part
3 ht leads
4 coil pack
5 knock sensor
6 fuel pump
7 full service ie cambelt plugs
8 td04 turbo
9 lots of other silly parts ie gaskets pipes .
i thought when i got this car i had got the right one 70000miles mint condition engine rebuilt with proof . full subaru service history now im gutted . subaru has not been my best performance car . any help please

34srm

well wot can you say to that hope its not a wagon as well

4evermad

iTrader: (1)

no not a wagon mate i thought i would put a post on here . some one might know whats going on or its off to a tuner .

edmy716

maybe tell us a bit more. have u changed plugs recently? and if yes were they torqued up correctly?
also ur panel filter is it a dry cotton one or an oil type one?

4evermad

iTrader: (1)

hi mate yes dry filter and plugs are new and torqued up ngk,s when driving on part throttle it feels like your pulling the hand brake up and down slightly when boost comes on wot it has a hesitation then goes as it should im puzzeled now

edmy716

dont give up m8, tbh the mafs are shocking on my99 i replaced mine three times!! first two were my fault (oily panel filter).

have u tried cleaning the boost solenoid?

4evermad

iTrader: (1)

yes m8 boost sol is well clean . it worse cold as well .

edmy716

were the plugs gapped?

34srm

its worse when cold, is it more difficult to start when hot or cold might be worth changing coolant temp sender

4evermad

iTrader: (1)

it starts no prob idles no prob plugs i thought thay should be gapped allready maybe im wrong

RON

Does it do it all the time...?? or mainly when cold??

4evermad

iTrader: (1)

all the time m8 not as much warm but still happens

4evermad

iTrader: (1)

anyone???????

dan83590

I'm sure you've checked this but thought I'd ask anyway. It aint something as simple as a partially blocked vacuum pipe, brass restrictor, etc?

catons scooby

sticky actuator thingy

34srm

think he's pulled his hair out completely now, should we all chip in for a cap then his head doesnt get cold,

btt for ya

4evermad

iTrader: (1)

i thought i would put on my manual boost controller just to check its not the boost sol but still same prob . and yes when turbo was put on all new pipe work with brass bit was used and yes im losing hair at no rate......

34srm

wot size cap do ya need

btt for ya

4evermad

iTrader: (1)

no cap needed yet . but i can feel the pub calling me i need a stella fix

ace2000

i would seriously have a look at the plugs dude i know you say they are new but still could be faulty (or not gapped correctly) do you have the code on the side of the plugs... its just that you are having the exact same probs i had and when the plugs were changed it was like having a different car cos you are still expecting the hesitation and holding back feeling...let us know how you go....Justin.......

4evermad

iTrader: (1)

going to get plugs out tomorrow and have gauge up on them 0.7m i think cheers for your help i will post back asap

Grey Import

Sounds like the exact problem I am having. I'm fitting my new plugs this weekend. new leads will arrive next week.

Could I hijack this post and ask what torque the spark plugs need to be?

cheers J.

4evermad

iTrader: (1)

ok took the plugs out was gapped to 0.7mm still have the same problem getting worse when cold. but still have the same prob when warm aswell surging and hesatation at about 3000 rpm

4evermad

iTrader: (1)

anyone got any new input

ZEN Performance

Take it to a specialist before you spend more money on things that probably aren't required.

4evermad

iTrader: (1)

i know your right but im down in kent and big lack of good specialist around

Russellg911

What's your place like at fault finding Zen? Is there any way you guys can check for air leaks or exhaust leaks?