poor running

[PAULRS2]

Can anyone help with this please. I've got an RS2 that's not running too well.
It's had a new stainless steel exhaust consisting of a 2.75" supersprint downpipe, flexi pipe, 200 cell sports cat and a 3" miltek cat back that's been modified to be a single pipe. it has a homefry chip in it from the s2 forum so should be running about 360bhp the problem is it's only boosting to 1 bar and feels very flat and down on power. So far we've done a boost leak test which was fine changed all the 4mm vacuum hoses and fitted a miltek hyperboost dv but it's still only boosting to 1 bar I'm going to change the wgfv but the one on is only 1 year old and has only done 3000 miles!!

Has anyone got any ideas please

thanks Paul

[drjones1]

Can anyone help with this please. I've got an RS2 that's not running too well.
It's had a new stainless steel exhaust consisting of a 2.75" supersprint downpipe, flexi pipe, 200 cell sports cat and a 3" miltek cat back that's been modified to be a single pipe. it has a homefry chip in it from the s2 forum so should be running about 360bhp the problem is it's only boosting to 1 bar and feels very flat and down on power. So far we've done a boost leak test which was fine changed all the 4mm vacuum hoses and fitted a miltek hyperboost dv but it's still only boosting to 1 bar I'm going to change the wgfv but the one on is only 1 year old and has only done 3000 miles!!

Has anyone got any ideas please

thanks Paul

Can you Vag com it to see if you have any faults.. Try disconnecting the N75 (boost solenoid) see if it makes a difference.

Check the Maf and particularly the connection.

Hope it helps..

[PAULRS2]

Thanks mate it's been on vag com and no faults & it's had a new MAF about a month ago, we've disconected the N75 and the boost dropped from 1 bar to 0.4 bar, the lad who's helping me with it said it's like the N75 is working but not properly so that's what we're planning to change next as I've heard of them failing before just hope it is the N75

thanks Paul