HI Guys

I'm after some advice on my Mk5 Golf, 2.0L TDi.


Start up is a bit on the laggy side, takes a few turns to kick in, runs fine at idle, as well as when you give it the berries.

The problem is that at low throttle openings, it hesitates, almost stalls.

To date, i've rebuilt the tandem pump, replaced the MAF sensor and replaced the EGR valve. But the problem seems to be getting worse.

I'm thinking (hoping) that all ive done is missed plugging in a vacuum hose or something.

Any thoughts?