I've got a greddy B-spec2 controller and just befor crimbo it started to over boost and slowly got so bad I had to turn all the settings wright down to 0.

I've got a VF28 turbo and now I have bypass the solenoid so should only be running actuator. But it boost's upto 9psi then after 4000rpm it slowly climbs upto 12.8psi. Is that about wright? Would a boost leak make that happen?(but can not hear a leak on boost) Or do you think the boost controller has just packed up?

 

must be someone out there with some no.. anyone..please

 

Mine is doing the same at the mo took it to the garage on saturday and they belive ive got a air leak so i would go round all ur pipes and check if there is any splits in ur hoses!
im having mine smoke tested 2morrow i will let you know if they find the problem!

 

what boost controller you using or is it standard.

 

ive got the blitz type r boost controller!

 

o.k let me know how you got on at the garage. I'm 90% shore that the controller on mine has packed up, but will not know to I buy a new one.

 

if it has then it wont be the controller itself but the solenoid , if u fill ur oil to the F-mark ( full ) then u get a lot of blow-by which is the excess oil from the crank case and cylinder head breathers coming back through the system and exits the turbine housing nipple as well as a lot of other places , anyway , this oil can block ur solenoid up and cause the actuatot to not get a reading basically and hence causing it to overboost , the more oil , the worse it will get , hence why it gradually got worse for u , recomend u to clean the solenoid with carb cleaner and only ever fill ur oil 3/4 full never more

 

my car never gets over filed and I only keep the oil half way up and yes I have cleaned the solenoid. If it's just the solenoid could I use a standard sti 3 port Boost solenoid and join the wires to match.

 

mmmmm sounds a good idea but not sure if it would work lol good thinkin batman lol

 

I may just give it a go, it's not going to hurt, I'll try and pick one up tomorrow.

 

so, how did it go down the garage. Good or bad.

 

really bad still at the garage they changed 2 air pipes and now the car is playing up whenever i put the clutch down it just dies now! and when i put my foot on the gas it takes a couple of seconds to kick in! ive had the crank sensor changed the throttle body sensor done and now a new maf sensor so not good! and not cheap!

 

sorry to here that. mine's working lovely now my controller had packed up, cost me £220 but it works