not drove my cossie for 3 weeks as the diff went, got a diff put it on and alls well, but for some reason my cossie is boosting at 25psi, ive not touched the turbo or anything just the diff, any1 got any solutions. is my turbo fooked

at the mo its stage one and did run 15/16psi, and now as soon as it hits 25 its not getting the fuel it needs as its only running on yellows!!

 

has a pipe come loose or split?
do you have mice where it was kept?serious question this.it could nibble through a boost pipe,ive seen this before.

 

na no mice, not to sure about the pipes, ill have a look when i next get it out, as i keep it in a garage all week and only use it at the weekends.

what pipes would i need to check. all the ones that go to the turbo i guess, what about the pipe for the boost gauge as the gauge could be at fault.

i not got a clue

 

You need to check small piepes going to wastegate actuator and boost control solenoid. One of them may be split, either that or failed memabrane in actuator.

 

cheers Azrael