hi im stuck so any help would be appreciated, im having boosting problems when i turn up the boost on my boost controller the car shudders when it hits around 4000 revs and if i really push it hard it seems to make a pop from the engine and cut out for a split second! ive just had a full service from subaru yesterday to see if that would sort it out but it hasn't, any idea where i would go from here? or what it could be?

 

Ah the joys of a boost controller and an ecu that wont let you blow your engine up....
Can we have more info like what year and model car you have?

Tony

 

hi yea its a 1997 2000 awd turbo uk had the apexi boost controller fitted and rolling roaded to 305bhp it was fine intill i took the car off road 4 about 4 months then it just started!

 

also have apexi air filter uprated fuel pump new cams (not sure what new cams) as when i brought the car the first thing i done was a service and cambelt change and they told me its had new cams recently put in!

 

So its had a fair bit done to it for it to get to 305bhp, new (bigger) turbo, does it have an aftermarket ecu?

Tony

 

I would hope so with those mods or at least mapped.

 

hi right just got home and found the reciept for the work carried out on the vehicle
fuel pump (walbro)
apexi boost controller
FCD(fitted to take out fuelcut/topend boost cut)
VF34 turbo
sti intercooler.
but i cant find any paper work on it being chipped so i guess i will have to look at the ecu to find out?

 

ok just got bk from perfect touch in hoddleston and they rekon i have a air leak or a faulty boost controller. and my peak bar was 2.4 so they said it should be turned down to about 1.2 bar! got to go bk monday for a dyno and a smoke test!