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Genuine Ford Bronco II Oxygen Sensors
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Ford Bronco II Oxygen Sensors
The Oxygen Sensors in Ford Bronco II vehicles help monitor the air/fuel mixture in the exhaust produced by the vehicles' engine. Of the two, the sensor determines the quantity of unburned oxygen and the ratio with the actual atmospheric oxygen, which through the voltage signal, the engine control computer can vary the fuel injector pulse width. This feedback loop enables the vehicle to run in a closed loop kind of manner which optimizes the actuator of the catalytic converter and hence reduces emissions. For most Ford Bronco II cars, there are at least two Oxygen sensors installed, with one before the catalytic converter and the other installed after the catalytic converter; the upstream oxygen sensor is deemed to be the main feedback supplier. The sensor is exposed to high temperature and over a given time it can be affected by fine particles thus the high emissions and low fuel perfomance. Some of the more modern vehicles may come with air/fuel ratio sensors as a replacement for commonplace oxygen sensors, which enable the broad measuring of the air/fuel mix.
We provide a wide range of Ford Bronco II Oxygen Sensors at the best prices possible. If you need Ford Bronco II Oxygen Sensors, you can shop with confidence on our website. All our OEM parts come with a manufacturer's warranty and are delivered to your door step with a fast delivery service.
Ford Bronco II Oxygen Sensors Parts Questions & Experts Answers
- Q: What is the purpose of the oxygen sensor in engine operation on Ford Bronco II?A:The oxygen sensor provides the computer with a signal indicating a rich or lean condition during engine operation. This information helps the computer determine the correct air/fuel ratio. A low voltage signal from the sensor indicates too much oxygen in the exhaust (lean condition), while a high voltage signal indicates too little oxygen (rich condition). Oxygen sensors are threaded into the exhaust manifold or exhaust pipes on all vehicles. Some later models use heated oxygen sensors to allow the engine to reach the closed loop faster. For non-heated sensors, with the oxygen sensor connected and the engine running, measure the voltage between the oxygen sensor connector and ground with a Digital Volt-Ohmmeter (DVOM). If the voltage readings swing rapidly between 0.01-1.1 volts, the sensor is likely okay. For heated sensors, disconnect the HO2S, measure the resistance between PW Rand and GND terminals of the sensor. If the reading is approximately 6ohms at 68 degrees Fahrenheit (20 degrees Celsius), the sensor's heater element is in good condition. With the HO2S connected and engine running, measure the voltage with a DVOM between terminals H02S and SIG RTN (GND) of the oxygen sensor connector. If the voltage readings swing rapidly between 0.01-1.1 volts, the sensor is likely okay. To remove and install, disconnect the negative battery cable, raise and safely support the vehicle on jackstands, disconnect the HO2S from the engine control sensor wiring. If excessive force is needed to remove the sensors, lubricate the sensor with penetrating oil prior to removal. Remove the sensors with a sensor removal tool, such as Ford Tool T94P-9472-A. Install the sensor in the mounting boss, then tighten it to 27-33 ft. lbs. (37-45 Nm). Reattach the sensor electrical wiring connector to the engine wiring harness, lower the vehicle, and connect the negative battery cable.
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