Re: part no. for the N75 valve on a '01 Jetta Wolfsburg 1.8T????? (John A)
there was a post on here in the last couple of days that basically stated that the N75 from the factory could be a little out of spec and with the incresed boost and timing from the chip it could be causing the surging because the N75 isn't holding the increased boost.. therefore the ECU is cutting boost/timing to compensate.
if i can find a N75 valve online for cheap i will replace mine and see if it gets rid of the surging... i don't want to pay the $100 at the dealer for the part... and knowing dealers... the part is probably $50 for them to buy...
anyway, no devious plan here. just trying to get rid of the surging...
later,
James