markusedma
New Member
I have an '03 Jetta 1.8t 5spd with the upsolute programming done. It was done at the dealer when I bought the car new. I have a problem with the car surging under acceleration you can feel it the most in 3rd gear with 3/4 to full throttle around 4000rpms, you can hear the turbo spooling up and then down then up and down when it does this. The problem started last spring. The car only has 15000kms on it. I took it to the dealer and they had the car for 3 months and could not fix it, they replaced the BOV with a aftermarket unit, changed the MAF sensor and drove the car. One of the techs from ubsolute finally came down to the dealer and looked but could not come to a conclusion. They said the car was better after what they had done and to try it out. Well it still does it. Now they say that maybe I need an aftermarket fuel press. regulator... And suggestions?