HI this is a question for a m8.
right the car was running well but now it wont run when cold, it starts but cuts out. You can rev it and it stays alive. Once it is warm it runs lumpy but it doesnt die.
The engine has just been rebuilt with low comp pistons and hasnt really been given any hard power yet. We have checked the boost pipes and everything seems ok.
check the coolant temp sensor for starters
just asked him he has actually replaced this with a brand new 1. didnt make any difference.. any other ideas?
thanks for ur help
i had a problem with my C20LET,it ran bad till it was warm.
changed plugs leads coolant sensor etc. it turned out the air flow meter was goosed.
you are best trying another one first cos there not cheap to buy!!!