adam22

Hey guys

My car has a really annoying problem. it revs to around 4500rpm and then the power drops off and it misfires and coughs and splutters. boost is also down,

I've had a walbro pump, new coils/plugs, fuel filter, tried swapping boost solenoid, map sensor all to no avail.....

anyone any ideas????


help much appreciated

Adam

Jam Performance

iTrader: (3)

check/replace cam and crank sensors and try cleaning out the idle control valve, i also had the same problem on a 93 wrx, i replaced all the coils, etc but after cleaning the cam + crank sensors and idle valve it was 100%

adam22

cheers mate i'll give that a go. forgot to mention it had a new cam sensor a while ago too as it was faulty and throwing up code 13. no fault code since i changed it

Adam

adam22

tried that has had no effect..... Any other ideas.... its strange it runs smooth and idles nice right up until its boosting hard

Adam

Scott.T

iTrader: (2)

what are the plugs gapped too ??

AndyB_WRX

I agree with Scott sounds like the plugs gap could be too big causing it to get blown out

adam22

0.7 mm was what i was told. the new plugs made no difference, is the same as before.

cheers

Scott.T

iTrader: (2)

are they new new coils or new 2nd hand coils

have you tried another MAF ?

adam22

Its just come up with a new fault code 23 i think thats maf, wasn't there before. This thing is really getting on my nerves now.

Cheers for the help though guys

Adam

adam22

Still no joy...