Hi people, was wondering if i could get some advice in regard's to idle problems im having, specially when its cold. it gets better as the car warms up but still remains abit. the car is V4 type r with simtek therefore no MAF. The lambda is new, i was maybe thinking the air temp sensor may have got dirty? best ways of cleaning or any other suggestions would be highly appreciated . This has just started after the gearbox rebuild, all the vac pipes are ok no leaks.