any help would be great had the car from new and been great now small problem ..car starts fine ..but when started from cold starts no problem but runs sluggish / erratic like if its missing but as soon as car gets to normal running temp cars runs great again any help would be great no fault light come on and she has been serviced well from new.........

welsh yan, September 2012

ok thanks for the reply.........

welshyan, September 2012

it can be very difficult to determine faults like these but I would definitely think about getting it onto the correct code reader,even if there are no faults stored then a look at live data for engine temp/egr valve operation and various sensors may help with your problem

cdc, September 2012