O2 sensors chalk up been installed into the exhaust systems of vehicles for in reality a unusual senescence. Depending on the year of your Ford Explorer, you may appropriate blooming keep multiple O2 sensors. The effortless belongings is telling whether one is wick; the solid apportionment is telling which one is wick. These sensors overseer the extent of O2 to the ratio of fuel burned wound up the exhaust course,l and provided they detect a variation above or below a decided reach, the sensor sends gone a term to the personal computer of the Explorer, which then triggers the MIL (Malfunction Indicator Lantern) to be illuminated on the dashboard while the vehicle is operating.
Instructions
1. Fix the DLC (diagnostic link connector) under the Chauffeur's-side dashboard. It Testament hold a trapezoidal shape and resemble the Issue of the law reader plug. Plug the hand-held portable regulation reader into the DLC once you've located it.
2. Turn the ignition primary two clicks to the "key-on/engine-off" position. Press the "Enter" button.4. Write down the number and the brief description the code reader dictates on the onscreen menu.
Many hand-held regulation readers Testament chalk up two or three buttons. One Testament be an "Enter" Press-stud and the other one or two Testament be scroll buttons that will manipulate the cursor to the onscreen menu of the code reader. Use the scroll button to move up or down to the "Codes detected" or "Read codes" option on the onscreen menu of the code reader. This Testament manipulate potency to the regulation reader and authorize all of the force options of the Explorer to perform without the vehicle absolutely running.3. Allot the buttons and options on the code reader.
An example may be "System Lean; Bank One Sensor Two." This would indicate the the mix of oxygen and fuel is too lean and the sensor in the first bank and farthest from the engine has triggered the MIL light to report the problem to you. While this is merely one example of many different DTCs (diagnostic trouble codes) that could trigger an MIL light to illuminate, it does indicate a problem with the oxygen sensor and which one has the problem.
5. Locate the bad oxygen sensor by referring to the manual to learn where the first cylinder or "Cylinder One" is located on the motor. Different-sized motors in the Explorers offer a variety of options. The position of the first cylinder dictates which bank the oxygen sensors run and scan. It may be the right side or it may be the left side. Some Explorers may have up to four oxygen sensors, and determining the bank is crucial to locate and condemn the problem sensor. The lower the number in the bank position (for example, bank one) the closer to the motor the sensor would be. The higher the number in the bank position (bank two), the farther down the exhaust system and away from the motor it will be.
