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General Car Related Discussion.To discuss anything that is related to cars and automotive technology that doesnt naturally fit into another forum catagory.
Normally it's down to not having or not having adequete cold air ducting so the engine breathes in hot air whcih isn't as dense as cold air which costs power
^i indeed it fould the wire of the MAF whcih causes incorrect readings. I run an oiled K&N on my A4 and every few weeks need to clean the MAF with electrical contact cleaner