On a 2003 Toyota Highlander, the oxygen sensors are located in two main areas: one before the catalytic converter (upstream) and one after it (downstream) for each bank of the engine. For the V6 engine, you'll find the upstream sensor on each exhaust manifold, while the downstream sensors are located in the exhaust pipe after the catalytic converter. If you're working on the vehicle, ensure to access them from underneath the car or through the engine bay, depending on their location.
There are 2.
2
There are 3 oxygen sensors on this vehicle. Some of the Highlanders with California emissions have 2 fron Air/Fuel Ratio sensors and one rear Oxygen sensor.
between the exhaust manifold and catalitic converter
Toyota RAV4's have two (2) O2 sensors.
yes
how many o2 sensors on a ford e350 van 2003
The 2.5 has 2 O2 sensors (both on top of the engine) and the 3.5 has 4 O2 sensors (two on top, and two under the car).
Exhaust pipes
The 2003 Toyota RAV4 typically has four oxygen sensors: two upstream (pre-catalytic converter) and two downstream (post-catalytic converter). The upstream sensors monitor the air-fuel mixture, while the downstream sensors check the efficiency of the catalytic converter. However, the exact number may vary depending on the specific engine configuration.
YES
There are two oxygen sensors in a 2003 Sonoma V6 with a 4.3 liter. Prices for the sensors start at $69.95.