Lumpy overrun??

[dr3]

I\'m a bit confused as to what is causing my FD to run so lumpy on overrun, basically when you lift off the throttle in gear there is a kind of two stage overrun. Firstly it starts to slow down then a second or so later it jerks to a slightly different rate of speed.
I\'m not sure if its a cal problem or if its something set up wrong on the throttle?
I rebuilt the engine and put some 850cc primary injectors in and once I got it remapped at Reworx the problem started, could it be something to do with the pulse width of the injectors being too large for idle conditions, as it also quite often stalls when returning to idle if I don\'t blip the throttle.
Any ideas??

[Red and Single]

My suggestion is to take it back to Reworx and ask them to sort it out.

I\'d have thought that what you need doing could easily be sorted on the road rather than having to book dyno time.

[dr3]

I was just about to call Geoff this morning, but he has Wednesdays off usually, so I thought I\'d just see what you guys thought first to see if anyone has had a similar problem.

[maximtaylor]

Book yourslef in and I\'ll do some work on it.

Sometimes the 850 primaries can be a pain to get absolutely perfect, other cars they run perfect straight away!