You are all probably aware about my recent troubles with my focus and it hesitating and surging mainly around corners then remains rough afterwards.
I have done some more test with the obd2 bluetooth kit and using an app on my android.
I tested the map sensor readings and im thinking there not quite right.
When going in a straight line on a road the map readings are normal and change slowly up and down depending on throttle. When going round a long bend or roundabout with my foot still on the accelerator the car was ok until it started surging and the map readings went and and down quite considerably. I was doing around 3k revs in 2nd gear around the large roundabout and the map was fluctuating quite badly.
Could this be faulty or is it fuel related.
I hope this might answer some questions, i also recorded the live data and have a video i could upload if anyone can help.