Get car on ramps, locate the CPS at front of engine at about the 7 o'clock posytion around the crank pulley, reach up and undo connector, take out two small(8mm) bolts that hold sensor to bracket on front of sump, reverse for new one.
Make sure gap is 0.6mm - 1.0mm between sensor and a lug on crank pulley, reconnect job done.
tabetha