I am finding that under acceleration in 3rd, 4th, 5th and 6th my map seems to have flat spots between 3,000rpm and 4,000rpm. It is most often noticeable in 4th and perhaps nearly as much in 3rd. The problem is not always present but 10-20% of the time, when I give it between 3/4 and full throttle, the car shudders momentarily at around 3200rpm - 3300rpm, picks up again, then kind of shudders again at ~3700rpm.
The ABT map was done at Bath Audi (a 200 mile round trip) and the rest was done by AmD Woking (10 miles away). I got the ABT map first, but spoke to ABT before adding the exhaust and they advised that no changes to their map were required. Overall the car is actually a lot smoother and progressive under acceleration when it is not showing this intermittent problem.
The car is 10 months old and has the mods listed in my signature. What is the best way to get the issue looked at without it costing me? What is it likely to be that is causing the problem - the map itself, of something else in the car that is not running properly?
Thanks in advance,
Cheese
The ABT map was done at Bath Audi (a 200 mile round trip) and the rest was done by AmD Woking (10 miles away). I got the ABT map first, but spoke to ABT before adding the exhaust and they advised that no changes to their map were required. Overall the car is actually a lot smoother and progressive under acceleration when it is not showing this intermittent problem.
The car is 10 months old and has the mods listed in my signature. What is the best way to get the issue looked at without it costing me? What is it likely to be that is causing the problem - the map itself, of something else in the car that is not running properly?
Thanks in advance,
Cheese