Toyota O2 Sensor Diagram. Heated oxygen sensor heater range check p0037 p0038 p0057 and p0058. 1az fe 2az fe 2az fe pzev 1gr fe 2gr fe 2jz ge 1mz fe 3mz fe.
Genuine toyota part 8946509310 89465 09310 8946509180. The ecu cannot properly recalibrate the wideband sensor using a falsely generated signal. A four wired oxygen sensor has four wires two wires for the heater circuit and two wires are for the sensing element.
The oxygen or o2 sensor reads the percentage of oxygen in the exhaust coming from the engine and sends this information to the computer.
Look on both front fenders just below shocks under hood and you will see the wires on each side for each sensor. Toyota 4 wire o2 sensor wiring diagram. Presented here to help you understand the o2 sensor from an electronics and wiring diagram point of. I need a engine compartment wiring diagram or an indication as to where the 02 sensors are fed from and is it a 5 or 12 volt circuit.