Hello all from another newcomer to the forum

- I don't know whether this thread might be the answer to my problem. Just bought a 1999 A6 Avant 2.5 TDi and am a bit unimpressed by the performance compared to the chipped Passat TDi it replaces.

There is no sign of the turbo coming on boost - is this the way it should be? - and it just doesn't seem to pull as I expected. At 4000 rpm it stops pulling as if it has hit a wall - I know max output is at 4000 ish, but still ....

Any ideas anyone? MAFF? Fouled injectors (no dirty exhaust or rough idling)? er, something else entirely?

thanks in anticipation.

James.