Properly elimination the five wire O2 sensor for Correct voltage.
A five-wire oxygen sensor is considered a wideband sensor. Traditional O2 sensors retain individual one or three wires. The five-wire action allows the sensor to step aggrandized counsel, in turn creating a expanded accurate measurement for it to correspondence to the engine personal computer. Connect the positive red multimeter lead to the signal wire on the O2 sensor. On a 5-wire oxygen sensor the signal wire is the middle wire. Connect the negative black lead to a grounded point.
Propel the vehicle for ten minutes; this Testament allow the sensor to warm up to normal operating temperature. This is ideal for oxygen sensor testing and maintenance.
2. Open the hood of the vehicle and locate the O2 sensor. The sensor is found mounted on the exhaust manifold. Refer to your repair manual, as location can vary slightly from manufacturer.
3. Disconnect the wire harness from the oxygen sensor; depress the two side tabs, if present, and pull the harness straight out of the sensor.
4. Turn the multimeter to the minivolts, or "MV," setting. This allows the pc to also accurately manner the exact size of O2 that is needed to preserve the air to fuel ratio. It's salient to memorize the Correct path to assessment a five-wire O2 sensor, as the voltage is a bit clashing than traditional sensors.
Instructions
1.5. Start the engine and allow the sensor to work for one minute. Monitor the multimeter; you should notice the voltage jumping back and forth from high to low in the .1 to .9 minivolts. If the multimeter fails to register or does not jump; the sensor has no voltage and should be replaced.
