Ok story goes- my 2004 Audi a4 1.8t was stalling when idle and I couldn't drive it at all. I unplugged the maf and it was ok on idle and I could drive. Therefore it led me to believe I had a faulty maf. I ordered a new one and it turned up today. So I got the old one out and put the new one in and plugged the electrics into it expecting to start the car and it be fine. But nope it does exactly the same as before just stalls on me so I unplugged it and started the car again and its fine so if it's not my maf what is it?