It is in the fuel tank.
lexus rx300 1999-2003
Tune up for 1999 rx300 Lexus
Two speed sensors on a 1999 rx300 .One is located under air filter box,remove air filter box and sensor in located there,the other sensor in at a 45 degree angle on the transmission just behind the battery,remove the battery and tray to get better access.The sensors have the same part number and are the same.
adjust headlight
These sensors are available on EBay for ~$70
Passenger side of engine on the rear valve cover.
It's attached to the throttle body.
You need to charge or replace your battery
3000 RPM
locate cylinders 2000 rx300?
12 mm
Underneath the lower intake manifold, in the valley between the cylinder heads.