There isnt one.
Crank sensor is best viewed from under car,its above offside drive shaft and a pain to get to,held in with 1 torx bolt
16V
the 16v is 150bhp and the 8v 115bhp.
yes i just put my 8v box on my 16v bolts straight on
at the back of the engine, below the throttle body, to replace, have to remove the intake manifold
150 bhp
135mph
Approx 6.9seconds
yes, It has a O2 Sensor
You can easily define whether it is a 8v or 16v by lifting the bonnet,a 16v will have a outlet manifold on top of the engine with dohc 16v written on it.
The book 0-60 time on a mk2 golf gti 16v is 8 seconds but like a lot of Vw's figures i found this be quite reserved. A well serviced and looked after 16v should be good for anything from 7.3 seconds onwards.