I posted a thread a few days ago, cars struggling with no power then eventually died.

Ive just been back to the garage, the P1 just had an uprated fuel pump (walbro). U start it and it seems fine. When i took it on the road the car just wouldnt pull after 2500 revs. It would drive but struggle to pull in any gear.

Went back to the garage, changed the maf, took it out again. It pulls in first but only up to 6000 revs then starts struggling, 2nd all the way up is even worse. Its just not boosting.


Any ideas? Its a strange one

 

There are any number of potential causes for this sort of thing. Have you taken this to a garage that actually knows Imprezas, and has diagnostic kit that will read them? If not, the obvious next move would be to find a good local specialist.

 

its at extreme scoobies at the moment, when he did the diagnostics there was no fault code

 

coil brakedown ?
or is the pump failing at all.

 

What about on-road diagnosis? Have they actually analysed/logged the engine's behaviour, or just checked for errors?

 

wot is coil brakedown? what do you mean is the pump failing? i dont think hes done a on-road diagnosis. As you can tell im no specialist

 

from exspairence, when the coil brakes down or the fuel pump. the managment light dont show. so under load, they wont work the way they should

not saying its deff that, but an idea for you to have a look at mate

 

It can be many things such as boost pipe etc. Best thing to do is book it in for a Dyno to see whats actually happening.

 

any good garages that dyno test around east london area - essex?

 

Surrey rolling road. Charlie is a top guy. Just google surrey rolling road give him a call & explain everything.

 

is he a subaru specialist? so he can find out the problem and fix it?

 

sounds like fuel problem,new pump takes extra power,check pump voltage,could be bad earth,relay.Put old pump back in see if problem still there.When fuel supply gets short the ecu will alter air /fuel to keep it within parameters,no fuel poor performance

 

Extreme scoobies will check out the car on Monday, will take it from there.

 

Happy days are back, called extreme, they said cars running perfect now, there was a blockage in the fuel lining!