Surging feeling

[TehSniper]

When I'm driving the car, the car feels like its surging, happening when on boost, any ideas what could be wrong?

[alexperkins]

N75 valve may be playing up. Get it scanned with VCDS

[TehSniper]

it went to the garage today, i had a feeling it would be, they are going to run some tests on it while its running, typical thing is though the surging stopped when i took the guy out for a spin. if nothing comes up then ill just leave it, if it is the n75, going to buy the race one off awesome gti

[Lowthy1989]

Check your manifold bolts! They're common to come lose, mine did and make a surge kinda noise! Just a idea before splashing out on a new n75

[TehSniper]

you could really feel it in the car too! was rather odd. Going to see the guys tomorrow and get a quick update. knowing my luck i might have to leave it as it is. Ill get them to double check the bolts though, cheers

[TehSniper]

well its been on the diagnostics and no faults there, its running rine so im gonna leave it as is for now

[TehSniper]

right, the problem came back, so ive got it booked in at a local garage called TMS, they have a full rolling road and diagnosic equipment, spoke to them on the phone and they seem to think its the EGR valve but i will report back the findings

[TehSniper]

well, it seems to be a dodgy MAF, given it a clean but if the problem comes back ill get a new MAF