hi ive got a fiests turbo engine fitted to my mk2 running ofab managment the problem is it boosts to 1.2-1.4 bar of boost and starts jumping down the road its not chipped and is still on a t2 i thought it was the actuator but i changed this and it still does it anyone got any idears cuz i dont ? cheers

 

Sounds like your running too much boost for a standard ecu, I belive the limit is 8psi on ofab? Try adjusting the boost to 8psi and see what happens.

Si

 

no one got any idears ?

 

as above, too much boost?

 

i no there is but dont no why lol ive got the actuator wound right in but it still boosts to that at the minite ive fitted a bleed valve and have got that closed but it still boosts to 0.9 bar so it still over boosts i think it might be map sensor but not sure ?

 

I bet thats you problem. If you have your actuator wound right in the preload will be higher thus holding to much boost.
Its the same with the bleed valve, if you have it closed the actuator will not work and the wastegate will not open!!