Over the last few weeks I've noticed an issue every now and then that while driving along with light throttle input (to the point of no boost) it feels like the car is lurching slightly. I figured it was just related to the DBW and ignored it due to seldom occurrence. I have a scanguage with boost xguage so I can also monitor boost.
Today I got a injector module from DTUK and the issue has become very noticeable when on light throttle on no boost. If I maintain this level of throttle the car starts to lurch quite badly. Once I apply throttle and boost kicks in there is no issue but the issue does return next time you go back to light throttle.
tomorrow I'm going to unplug the box and go for a spin to see if the issue is still there, I suspect it will be given I experienced it (nowhere near as badly) for a few weeks before fitting the box.
I'm just wondering if anyone has experience an issue similar to this, I've read about the surging issue some people have had with the SCV but I'm not sure if its the same thing.
Cheers
Toby