Poor idle, car cutting out at junction / low speed.

[Scarface1]

Hi all.

So I recently got my 4.2 running after some time off the road.
It was running and Reving rough but previous owner had had it fault read as lambda's so I have swapped them both.
It now starts and revs great when stationary and not under load.
However when driving it seams to hesitate until 2000-2500 rpm then takes off and when you throttle off to change gear or pull up to a junction etc the revs die and it cuts out unless you keep revs up.

Any ideas before I book into a specialist?

Thanks in advance for any help.

Steve

[Scarface1]

Hi Guys.

Thanks very much for your replys.

We adjusted the throttle stop slightly so the idle is set at 1100 (any less and it stalls) and it now drives ok.

I have spoken to Racing green and APM and will be getting it in for a set up if I dont find some one local to plug in and reset my ecu etc.

Thanks again.

Steve