They sell them at Autozone for about $160.00 www.autozone.com
There isn't one on the V8 or TDi
"http://wiki.answers.com/Q/How_to_replace_a_2002_land_rover_discovery_crank_shaft_sensor"
The 1999 Range Rover 4.6 liter engine crank shaft sensor is located on the back of the engine. The crank shaft sensor is behind the rear engine cover.
at the front of the engine beneather the camshaft pulling
O2 sensor cicuit no activity (bank 2 sensor 1)
the unit bolted to the left of the front cam housing ....
On the exhaust header right ahead of the catalytic converter.
Make sure it has spark, to start with. If no spark I would check cam and or crank position sensor. Timing chain?
You replace it. Should be next to the trans case.
Begin by removing the rear engine cover from your 1997 Land Rover Discovery. Remove the crankshaft sensor wiring harness. Remove the crankshaft sensor retaining bolts. Reverse the process to install your new crankshaft sensor.
Land Rover Discovery was created in 1989.
o 2 sensor circuit open down stream of converter