Hi, I have had a bit of trouble with my MAF sensor lately and need a bit of advice. About a month ago I was getting hesitation when accelerating steadily, but I couldn't really notice it when I had my foot down. Checked on the forums and found a few people with the same thing that suggested I unplug the MAF sensor to see if things got better. That seemed to work, so I went to Audi to get a new MAF. Replaced it myself, but it was still ****. Unplugged it again and acceleration was fine. It did look like it had been fitted to another car before as it had a bit of grease on it, so I took is back to Audi. They had the car in and ended up replacing the MAF. When I got the car back it was all fine for 2 or 3 days, when it started playing up again. Surely I can't have another faulty one can I? I have a REVO remap and thought this might have something to do with it. Has anyone else had the same problems and is there a different MAF I can use to cope with the higher power?