Evo 4 Idling Problem

[Evo_4]

Hello guys and girls;

I have had my Evo 4 for about 6 months now and was fine when I drove her back from the place where I got it but she seems to suffer with an idling prob. I give her boost, she's fine but then just driving her sensibily is when she does it. I know wen its gonna do it because its not smooth acceleration like it should be, so I pull over n just dies on me. Restart it several times (at least 8 times the other day) but it just dies again straight away, I will give her some revs n after a while of me doing so it sorts itself out n then will b fine again.

By the way the car is completley std apart from an exhaust and turbo timer. Have checked all hoses etc but can't see any probs there and when I bought the car (from a garage) they said they had replaced the Crankshaft Sensor, why I don't know?? Have also had it back into the garage as had 3 month warranty with the car but they haven't found anything, supposeably.

Any help would be most appreciated and looking forward to making some new friends

Thanks
Steve