I recommend you check the sensor change procedure, as there is a factory gap between the sensor nose and the camgear segment. This has to be .4-.6mm gap and is adjusted with shims behind the sensor mounting. The shims come from 0.1 thru 1mm , in 1/10mm graduations to adjust the proper CPS gap.
If you look at the pdf. file Dean posted , what looks to be a gasket [item # 62] is actually the mounting/gap shim piece.
You may luck out without checking this gap measure, but I would certainly not recommend doing this change without measuring/adjusting the gap w/new sensor. If the gap is too small, you can wipe out the new sensor.
If too large, running problems [ and CPS codes] can occure...
{ you may even want to measure the old one before removal]