[cheshired5]

You need to get the Vida MAF figures again at idle and through the rev range as they were missing earlier in the thread.

Timing marks and how to compare them are in my D5 timing belt change video.
Basically whip off the belt cover, manually turn the crank pulley until the cam pulley mark lines up with the mark on the top of the belt rear cover then look for the crank pulley mark in relation to the oil pump housing.