I am gettin symptoms of fuel cut even below 0.8bar?

[Marc]

For a good few weeks now when i put my foot the floor and go above 4,000revs i am seeming to be hitting some sort of barrier. It cant be fuel cut because i sometimes feel the judder/loss of power at .5, .6 bar etc so its not even above fuel cut.

Any ideas? It can be heard in the exhaust as well when it judders, it feels kinda like someones tapping the brales slighty when acceleraing hard.

Mystery to me so it is....

M

[Callan]

ignition problem?changed your plugs leads dizzy and rotor arm?fuel cut is harsh comapred to that,or your actuator could be bummed and not holding boost?

[Spoonz]

do u have a FCD???

it could be an ignition lead but it wont feel nothing like Fuel cut just cause a mis fire

[Marc]

I have a jam FCC installed, so it rules out actual fuel cut. Maybe it is an ignition problem, i am going to sort out a new dizzy cap, rotor arm, plugs, and leads and see whats happening.

[paulgtt]

do you still have the original cat in? if you do it could be that its slightly blocked.

is there any smoke out of the exhaust?

if not then could be fuel injector/pump blockage.

[Si@Fiske]

i would say ignition; check you plugs are alright and gapped correctly aswell as above info people have given or your fuel pump mate