todays logs and im not happy with it

[adam cupra 20vt]

Drops off way to quick to I'm guessing there is a leak.

MAF = Mass Air Flow Sensor

 

[LEE69]

Yes it is

 

[Pyro]

Thats not enough boost for stage2 thats only just over a bar? 18psi? I would check all boost and vacuum pipes for splits.

Chech DV to.

DV is fine i seviced it yesterday nad dit pen/finger test

 

[sambryant]

looks to me like a leak.

 

[Pyro]

get nothing on vag com??

 

[adam cupra 20vt]

get nothing on vag com??

You will have to check all the pipes for splits/leaks and bad connections

Smoke pressure test would be a good idea.

 

[LEE69]

Or replace it with a catch can

 

[sambryant]

Or replace it with a catch can

+1
fit a catch can and remove the pcv system, thats a good start and a good move for the future as the pcv always fails at some point. then check all boost and vac pipes.

 

[Pyro]

wats the price an a catch can?

 

[Pyro]

would a leak make g/s reading low?

 

[sambryant]

i would say yes, as the car isnt pulling as hard so its sucking in less air

 

[Pyro]

heres recipts for works on the car

 

[Pyro]

heres the split pipie

 

[Pyro]

could this be the problum???

its the same pipe as in the pic befor but upon inspection it snaped in my hands just went and got a bit of pipe from halfords and bodged it up for now anyone know what the pipe is called or part number???

 

[LEE69]

Yes that's the problem they need to be joined together.

 

[Pyro]

Yes that's the problem they need to be joined together.

have joined it all up there was a[pipe on there but it was split and when i was looking at it it snapped off so now joint togeter guuna have a test run soon and will update as to if this has helped

 

[Cowie]

Hell yes! it's the usual suspect in the pcv system,that damn y shaped pipe,they all go eventually,get the catch can mate it does away with all that crappy chocolate pipework

 

[Pyro]

just been out for a spin and not maed much diference atall wats price of a catch can? and is it easy to fit?

if i turn TC off i boost a lil bit higher like 1 PSI still boostin the same

so the PVC system??breather system????? will efect boost?

 

[DannyC87]

as said before. pressure test your system as per the guides on here, or go to a garage and get it done for you. There are so many potential places for leaks. PCV is unlikely to be the cause IMO, you wouldn't lose that much boost.

To check MAF, unplug it and go for a run, see how it feels. Don't leave it unplugged for too long tho.

 

[Pyro]

as said before. pressure test your system as per the guides on here, or go to a garage and get it done for you. There are so many potential places for leaks. PCV is unlikely to be the cause IMO, you wouldn't lose that much boost.

To check MAF, unplug it and go for a run, see how it feels. Don't leave it unplugged for too long tho.

just unpluged MAF felt the same bnut now TC lights on and i cant turn it off