Hi all I had to replace my MAF sensor at the beginning of the week and I bought a brand new genuine Bosch one from GSF car parts. As soon as I fitted it the car was back to normal. Then a day later it went back to how it was when the MAF had gone. I reset my ecu as I read on a forum you should after fitting a new MAF and it was fine again. Another day later it's gone back to being like the MAF is faulty again! What shall I do? Many thanks!