been working on the car lately, replaced all breather pipes as they where all shot, along with the pvc. i also done the n249 mod, whilst doing this i managed to snap the nipple of the bottom of the inlet.
so i replaced the inlet, cleaned the TB, and completed the N249 bypass mod. car now holds boost properly and ticks over nice and smooth, i also took the atmospheric DV off and put a forge recirculating valve on (fully recirculating, blanked off the trumpet)
now when i come on boost i peak around 19-20psi (iv always peaked around this) but after doing all these things i peak once, and then i can only hit 8psi and its really restrictive in power.
my vag com shows up the pressure drop between dv, (always had this) and the 17963 code.
as soon as i clear the code it will boost again. pain
the n75H isnt all that old, id say jan/feb it was replaced, my MAF was replaced with a genuine bosh one around 5months ago, when i changed the inlet i did clean the AIT sensor. but it was alot more grubby than my old one, is it possible that a fault AIT sensor would throw up this code?
my vag com is only the ebay jobby so i dont think i can log a run can i? and i cant reset my TB either but on tick over my TB is open 0.4degrees which seems a sensible percentage.
2000 AUM 1.8T
every bit of help is appreciated.
james
