Hi all, After extensive lurking and learning, my first post: Day 1: Car starts and idles as normal but shudders as I'm pulling off, as if it's trying to pull in third (winter mode and handbrake not engaged!). After just a few metres, the car drives fine, but shudders again when I next pull away from rest. Drive around the block and park up. Read about a 'this might fix things' suggestion (ignition on, engine off, hold kickdown for 15 seconds, wait 2 minutes, switch all off). I try this and the shuddering does indeed seems to have disappeared. Don't know if this is a fluke and don't have time for a spin. On Day 2, the car starts and idles as normal, but on pulling away it stalls. Tried again and did 100 mile round trip with no problem starting from rest, however engine responsiveness/performance is not right - the car doesn't seem to want to rev past 2000rpm, even with a heavy foot. I have all gears - it's not in limp home mode I don't think as it still picks up speed OK, and can cruise at 70, but not free-revving and not wanting to accelerate as quickly as normal, seems loathe to spin faster than around 2000 rpm. If this sounds like a simple MAF sensor issue, I'm inclined to give it a go and replace myself without paying for a STAR diagnostic. If it's likely to be something else, I probably won't go there... any suggestions?