MK3 GTI 16V REVS..........

[vdub virgin]

hi, can anyone help with this?
when you rev the engine then take your foot off the accelerator the revs very slowly fall back down,and not drop down as normal,very annoying and makes the k&n sound sh*t wen you rev it up!
ive tried oiling the throttle cable in case that was sticking and cleaning the butterfly in the throttle body but to no avail
anybody no wats causing it?

[DazVR6]

Have you replacerd vac lines ..?, cheap to do and could make the difference.

[vdub virgin]

no i havnt,thanks ill get sum silicon tube n replace em,
thanks!

[DaveGTiMK]

mine does this.

Check for leaks around the air box pipes etc, replace or clean any old ones

But from what I have been told this is fairly normal for the 16v.

[MK3GTI_16Valve]

Sounds normal to me, mine does the exact same, always has done

[ToddyGTi]

Had the same problem, turned out to be a vacuum leak on the pipe from the inlet to the fuel pressure regulator.

[vdub virgin]

wheres the fuel pressure regulator?