That's OK.
The air intake fpr the engine is metered by the MAF, or air mass sensor. It is dead easy to locate, just look for the big black tube on the drivers side of the engine bay (rhd) - it's about 75mm in diameter and has a device in it held in place by 2 silver grey clips. There is a 2-pin connector going to it as well. This is the MAF.
Why are you interested in the air intake sensor?
Cheers,
Mike