n75 valve suspected failure symptoms

[big_bry]

ive been reading up on internet what the n75 valve does etc and im thinking my car is having a failure of this part as most the symptoms my car seems to have can some shed some light on it if u dnt mind, my current problems being

turbo starts to spool basically 1.5k revs and stutters and stops spooling around 2k but dumps, bit ropey when started from cold again same probs going to boost early here turbo but no power etc but then dumps even tho havent took foot from acellerator pedal, and when u get to about 2.5k starts to boost very well untill it gets to 4k and sometimes it is off like a rocket but other times it just seems to labours it way up past the rev range , hope this makes sense and any help would be greatly appreciated

 

[big_bry]

or could this problem be solved if i did the n249 bypass, car is a seat leon cupra 180 has relocated air induction hard pipe forge dump valve magnex exhaust system although im unaware if its just back box or whole system and a custom map was baught this way

 

[big_bry]

http://www.ebay.co.uk/itm/1-8T-20v-...arts_Vehicles_CarParts_SM&hash=item2580d0b548

or would this be a good buy ?

 

[nd-photo.nl]

n75 could be the culprit, do you know how old it is (or how many miles the car has done with it)? Clean the DV just to be sure and check for split pipes.

Also get it scanned, have you done that already? Gives valuable info most of the times.

 

[big_bry]

its got 93k miles on the current engine m8 and has a forge dump valve on it and no havent plugged into check codes as no engine managment light on ?

 

[nd-photo.nl]

Error codes can be stored without having to throw an EML. Also wise thing to do: get some logs done with channel 1-3-118.

Which car is it btw? LCR? LC180?

Fill in your signature, so people know what car you are dirving. Saves the hassle of asking it everytime

 

[big_bry]

seat leon cupra 180 yeah ill do signiture in a bit

 

[LEE69]

Don't bypass it PLEASE!!!!!!!!!

I have a spare here i can flog you pm me

 

[big_bry]

pm sent m8