Fuel comp self calibration? - Ford S-max - a900ss
Can you self-calibrate the fuel computer on a ford S-Max. Mine is about 15% optomistic and I know that you could self-calibrate the FC in the Mondeo's by using the two dials/steering wheel controls. If it can be done on an S-MAx, how?

I know I can always deduct 15% off the claimed number but if it is easily fixable, I rather would.

Thanks