slight part throttle missfire

[missmouse]

I sometimes get a slight missfire or hesitation when I accelerate off boost at part throttle between 3k & 4k revs.
Fitted new plugs.
The maf has been changed a couple of years ago (alledgedly!)
On full boot the car goes like f**K!
Also it doesnt do this all the time.

Any ideas?

[beastman]

I sometimes get a slight missfire or hesitation when I accelerate off boost at part throttle between 3k & 4k revs.
Fitted new plugs.
The maf has been changed a couple of years ago (alledgedly!)
On full boot the car goes like f**K!
Also it doesnt do this all the time.

Any ideas?

Mine was doing this a while back and a new lambda sensor cured it although believe can be other causes.

[missmouse]

is there a way to check this using vagcom? Are there 2 lambda probes on the rs4?

[RS4_fin]

For possible causes, use search function with "hesitation"... that is if not yet already done.

[boxerdogted]

Four lambda's on RS4. Do a check with vagcom for fault codes first.

[missmouse]

Im a bit of a newbie with vagcom guys, any chance of talking me thru the procedure to do these tests?
BTW Ive only got the free basic copy of vagcom, will that do this?