can anybody help only had my 2wd sapph for a couple of weeks was running about 15-16 psi just had new cam seals &belt fitted and now it's struggleing to hit 5psi

 

manifold leak? Try plugging up dump valve and check hoses.

 

yeah,run it,rev it,feel for leaks,and listen for leaks too!does it feel slower?if not it could just be the gauge!

 

cheers guy's gauge was working fine before it went in for work just been checking all the hoses arond the turbo and they all seem fine apart from the one coming from the cone air filter would this cause the problem sorry but a bit of a novice with all this under the bonnet stuff

 

The only way the one from the cone filter would cause any problems is if its collapsing. has your car got a dump valve?

PJay

 

no dump valve at present but did have one that section of hose is now plugged when i had a look at that hose though it seemed to have some possible perishing places and one or two possible rips but do not seem to go right through

 

Does it feel like its boosting properly when u drive?! The tubeing going to the boost gauge might have come loose or something.

Also does it start/run ok or sound a bit like a tractor?! mine had loose'd 2 manifold 2 turbo bolts last nite and it wouldnt boost properly.

 

it feels fine to drive just no real boost pressure seems to almost reach 5psi and you can feel it starting to spin the turbo and thats it nothing after that just feels like a normal car without a turbo have checked all hoses i can see and they all seem to be fine apart from possibly the one from the cone air filter it starts fine and runs fine

 

Check the actuator - is there PLENTY of threads showing??

 

i dont know how much shold be showing anyway have replaced induction pipe and still no better still struggling to hit 5psi feels like it wants to do more but when it hits 5 it stays there and then just accelerates like a normal car after that no kick up the arse at all