PS: Cam sensor is located at the front left of engine, (black unit)
drips oil onto exhaust manifold heatsheild when O ring has gone brittle.
http://www.cygnusx1.net/supra/library/TSRM/ig/IG_23.html
Notes: 1 to 8 only required for removing O ring, also note 6 states remove
“Power Steering Reservoir Tank” undo bracket bolts & nut, gently move (pull) reservoir tank clear and remove cam sensor, no need to remove reservoir tank.