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on each exhaust manifold there are Air Fuel Ratio Sensors. these are before the catalytic converters. after the converters, there are 1 or 2 Oxygen Sensors. i believe the 99 has 1 held by 2 12mm nuts about even with the driver's seat under the car.
the connector is under the driver's seat.
What else can I help you with?
1999 Lexus rx300 oxygen sensor?
These sensors are available on EBay for ~$70
Where is fuel filter located in 1999 Lexus RX300?
It is in the fuel tank.
Show location of knock sensors on 1999 Lexus rx300?
Underneath lower intake manifold in the valley between the heads.
How much does a tune up cost for 2000 Lexus RX300?
Tune up for 1999 rx300 Lexus
Where is the speed sensor for the speedometer on a 1999 Lexus RX300?
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.
How do you adjust the headlights on a 1999 Lexus RX300?
adjust headlight
What auto does hm3614 oil filter fit?
lexus rx300 1999-2003
Where is the throttle position sensor on 1999 Lexus RX300?
It's attached to the throttle body.
Where is the pcv on a 1999 Lexus rx300?
Passenger side of engine on the rear valve cover.
What RPM does the 1999 Lexus Rx300 shift into third gear with overdrive off?
3000 RPM
How many ignition coils in 1999 Lexus RX 300?
locate cylinders 2000 rx300?
The clock keeps reset 100 am 1999 Lexus rx300?
You need to charge or replace your battery
