Air/Fuel (A/F) Sensor (Avalon, Camry 2.2L 4-Cyl. CNG Models, Camry 2.2L 4-Cyl. Gasoline Models With Calif. Emissions, Camry 3.0L V6 Calif. Emission Vehicles, Camry Solara 2.2L 4-Cyl. Calif. Emission Vehicles, Camry Solara 3.0L V6 Calif. Emission Vehicles, RAV4 Calif. Emission Vehicles, Sienna Calif. Emission Vehicles, Tacoma 2.4L 4-Cyl. Calif. Emission Vehicles, Tacoma 2.7L 4-Cyl. Calif. Emission Vehicles, Tacoma 3.4L V6 Calif. Emission Vehicles, Tundra 3.4L V6 Calif. Emission Vehicles, 4Runner 2.7L 4-Cyl. Calif. Emission Vehicles & 4Runner 3.4L V6 Calif. Emission Vehicles)
Air Fuel (A/F) sensor may also be referred to as A/F ratio sensor. Heated A/F sensor monitors exhaust gas oxygen content and delivers an input signal to Engine Control Module (ECM). ECM may use input signal to control fuel injection system. For A/F sensor location, see A/F SENSOR LOCATION table.
A/F SENSOR LOCATION
| Application | Sensor Location | ||
|---|---|---|---|
| Avalon | One On Each Exhaust Manifold | ||
| Camry | |||
| 2.2L 4-Cyl. | |||
| CNG & Gasoline Models | On Exhaust Manifold Above Catalytic Converter | ||
| 3.0L V6 | One On Each Exhaust Manifold | ||
| Camry Solara | |||
| 2.2L 4-Cyl. | On Exhaust Manifold Above Catalytic Converter | ||
| 3.0L V6 | One On Each Exhaust Manifold | ||
| RAV4 | On Exhaust Manifold Above Catalytic Converter | ||
| Sienna | One On Each Exhaust Manifold | ||
| Tacoma, Tundra 3.4L V6 & 4Runner | On Exhaust Pipe In Front Of Catalytic Converter | ||