tyler120706

I got my my 99 mapped yesterday on the rollers but for some reason I wouldn't boost more than half a bar no matter what he tried electronically through mapping it wouldn't do it. just to prove it would boost he put a bleed valve in the system and surly enough it did 320bhp at 17psi with the mods it's got I was happy with the result. After pullin it off the rollers there is a def improvement no turbo lag and accelerates alot better which was what I wanted.

He has told me the boost solenoid was faultly and for me to replace it and it will boost to the 17 psi it's now mapped for but I have done this to no avail it will not boost more than 0.6 bar I've also changed the maf sensor and all the vac piping but I can't get that 17 psi.

Someone plz help me or shall I put a manual in car bleed valve in and run it like that???

Turbotits

iTrader: (2)

It must have a fault somewhere of its not making boost. Fitting a bleed valve will just mask the under lying problem. Get it sorted properly would be my advise

tyler120706

My thoughts too but after changing the boost solenoid and the maf and all the vac piping I'm at a loss

Turbotits

iTrader: (2)

Did you replace the restrictor pill in the new pipework? Or was it even fitted in the old pipe work? Its important its fitted to acheive boost target

tyler120706

I've not changed the pill no just everything round it

Turbotits

iTrader: (2)

So the resrictor pill in the wastegate pipework is there?

tyler120706

No there never has been on on the turbo there's a pipe from the actuator to a t piece off the t piece one goes to the turbo the other to the solenoid

Turbotits

iTrader: (2)

There does need to be a restricter pill in there. Google it to show which pipe it should be in. If you go into halfords and by a mig welding tip for 0.8mm mig wire. Stick that in the pipework at the right location. You now have a restrictor fitted. Give that a try

tyler120706

I've put one in it's not made any difference

tyler120706

Sorted now pulling over a bar but it gets to 1.3 and it's sort of stutters and drops on a bar who one know why

Turbotits

iTrader: (2)

What was wrong?

tyler120706

it was the restrictor pal managed to get hold of a 1mm mig tip, i remembered that it had replaced all the pipe work when i bought the car cause it had all gone solid i didnt know anything about the restictor so many thanks , can the fuel cut off be mapped out or do i need something to overide i before a get my map tweaked

Turbotits

iTrader: (2)

probably needs a map tweak, Id first get hold of a smaller mig tip i.e.0.8 as is suprising how much difference that small amount makes