Hi I am looking for help, last week my car started to miss fire when engine got to normal temp, which to me felt like a plug down so I changed the plugs and HT leads but still does the same some time it clears other time it don't, but it engine runs fine was it is cold, I didn't change the coil packs as they cost £160 each unless I go for after market which I don't fancy and I think anyway if it was one of those it would be miss firing even when cold, could it be the MAF sensor any help or advice welcome.
many thank
Don