wrxbart

iTrader: (5)

When driving and giving the car some stick, at about 5500 to 6500 the engine starts to flutter then looses power like you have run out of fuel on a carburetor car. Its a 93 wrx,De-cat ,panel filter ,sti5 intercooler ,fse power valve ,motorsport fuel pump ,parrallel fuel rails ,scoobyecu type of chip ,sti6 v limited ra box. Can anyone please help me as to whats wrong, it usually pulls clean with good power to 7000 rpm easily.

Jason Knowles

May be fuel pump JASON

wrxbart

iTrader: (5)

Its brand new and it does the same with the old one. Been told it could be the MAF sensor.

NotoriousREV

Does it stutter when it loses power or is it smooth? If it's stuttering it's more likely that you coilpacks are failing.

wrxbart

iTrader: (5)

It does stutter yes a bit like, i surpose if you turn your ignition off. Is there any way of testing the coil packs?