car ticking over very lumpy (misfiring it seems) below 2000revs not all the time engine management light came on fault code 17705.car running fine above 2000 revs.garage have said probably throttle body.its a 2002 octavia vrs with only 45000 miles surely it cant be this.any help greatly appreciated:mad:

check the pipe between turbo and intercooler, maybe loose or split.

They could be 2 seperate issues, my old MK1 was lumpy but throttle body clean sorted that. I also had 17705 and think the pipe mentioned above might have sorted it, the light never came back on...but I didn't check for codes.

:iagree: on the pipe issue. There is a thread on here in the Octavia section titled "where does this pipe go" (or similar). Do a search for that and "17705" and you should find all you need to know.