power probs

[mike 850]

on my 850 t5 its doing something strange, it pulls really strong but when it gets to around 4.5k it feels like a kick, almost like the power slightly drops off then comes back on then!!!only really notice it in 3rd.
anyone any ideas
its had a new maf,plugs,leads,dizzy,rotor arm! im starting to think on the fuel side of things but not sure
cheers

[Vikingxl]

Check the injectors mine was having a similar problem until Vt found a leaking injector!

[mike 850]

should this throw a fault code though? theres nothing showing as a fault! wondering if the fuel filter could do this?

[Liddo]

Mine was doing that when it was overboosting because of a split pipe/actuator. Get it checked, cos I bent a rod and it cost me nearly £900!!
BTW, i WAS Rica'd too

[mike 850]

i've replaced all the pipes from the inlet to the turbo, actuator etc? can the actuator be at fault? it boosts to 1bar, doesnt overboost and it doesnt get full boost till around 3k, is that at risk?

[Vikingxl]

Injector didnt show any codes mate just leaked fuel

[mike 850]

any ideas how i could test them? or is it garage job?