hi i have a 05 gti with 80k on it recently done stage 2 and i seem to have a loss off power from 4000rpm
originaly i had setting on b7 t5 f7 but have been reading on here and a fair few people are saying change fueling to 9 which i have now done as soon as i did it the car was fine palled all the way through faster than it has ever been but then got in it the day after and back to the same no power after 4000rpm rrrrrrr so anoying
and i keep getting "system to lean off idel bank 1"
i have full miltek
latest DV
changed fuel filter
changing the HPFP cam follower this weekend
im guessing its the fuel pump but dont want to buy a new one then find its not that, also ive read it could be fuel pressure sensor as mine is the AXX engine code
if anyone could shed any light on this it would be great
cheers
simon
