Problem fixed, thanks for the replies, I misaligned the throttle gasket. I'm feeling pretty stupid now, going to have a beer and see what I can screw up next.

Thank you.

So I just replaced the yellow sticker ETM, with a Xemodex pre-programmed unit. Before the car was hunting at idle, and stalling while driving (usually under deceleration), no trouble codes or idiot lights except ETS after stalling. Now that the new unit is in the car is running, well more like a con...