hi guys need a bit of help.got a 52 plate focus rs with bluefin,PD manifold,miltek sports cat and mongoose exhaust and in the last week it has started overboosting.checked the boost hoses i fitted and dump valve all seem leak free any ideas what it could be thanks in advance

 

Overboosting as in??? Passing the desired tearget oressure then settling after a second or so or once on full boost getting fuel/igniton cut?
If its the later are you sure its overboost,could it possible be blowing the spark out? Check the plug condition and gap accordingly.

 

boost guage in the red which has never done before when accelerating,not hard acceleration but gradual.when slowing down and braking revs drop to the point that it almost cuts out.

 

Has this just occured since fitting new hoses and dv? If so easiest option would be to switch back and retry. Sounds like you could have air leak,possibly faulty dv perhaps??

 

hoses been on about a year same as dv.checked actuator hose all secure.

 

could my actuator be on the way out at all??

 

I would have thought if it was the actuator it would not boost as much........

 

think your right running out of ideas