replaced tps a few months back when problems started. replaced idle control valve yesterday anyway as it wouldnt even tick over anymore. it solved that problem as it was now ticking over but hunting pretty badly. disconnected lambda and engine revved up fine and when it was plugged back in it ran crap again. took it for test drive with no lamda plugged in and it drives ok. so now ordered a new one and should get it tues. so well done to anyone who got that right. ill let u know how goes but thanks everyone for ur help, im fairly new on here so its helped no end