boost up and down HELP PPL

[martin_cupra]

hi my boost in my 2001 ibiza cupra should sit at 1 bar but its went down to 0.4 but i could be driven and it will just go back to normal has anybody had the same probs thanks all

 

[tyrrell]

n75 valve?

 

[turbo009]

you put it on vag com ? Could be a few things

 

[martin_cupra]

how much is the n75 valve coz a have not got vag-com

 

[s1l3nc3r]

A bit more info like mod's and when it does it like on full boost etc would be helpfull but its wasting money just guesing and buying parts for it and post a message in a vagcom section see if there is anyone there who can give you a hand...

 

[martin_cupra]

it does it from start up then when im driven it then the boost will come back for a moment. it has a jabba remap k&n