#How to read aem air fuel ratio gauge install#
#How to read aem air fuel ratio gauge manual#

#How to read aem air fuel ratio gauge manual#

Note: If you have a hybrid vehicle, use owner's manual for disconnecting the small battery only.

Take the ground cable off of the battery’s negative post disabling the power to the air fuel ratio sensor. Step 4: Open the vehicle's hood to disconnect your battery. If you do not have a nine volt battery saver, that is fine. This will keep your computer live and keep your setting current in the vehicle.

#How to read aem air fuel ratio gauge install#

Step 3: Install a nine volt battery saver into your cigarette lighter. Engage the parking brake to the lock the rear tires from moving. Step 2: Place wheel chocks around the rear tires. Note: This is only for vehicles with all wheel drive transmissions or rear wheel drive transmissions.Make sure that the transmission is in park (for automatics) or in 1st gear (for manuals). Step 1: Park your vehicle on a flat, hard surface. Having all of the necessary tools and materials prior to starting the work will allow you to get the job done more efficiently. Part 2 of 7: Preparing to replace the air fuel ratio sensor If you have scanned the vehicle’s computer and found different codes than mentioned, perform diagnostics and troubleshooting before replacing an air fuel ratio sensor. For the codes P0131 and P0132 the air fuel ratio sensor has either a failed heater or there has been catastrophic failure due to thermal shock. The codes P0030 through P0064 will display that the air fuel ratio sensor heater has shorted or is open. The following are codes associated with the air fuel ratio sensor: Different codes may come on during the scan process letting you know that something within the engine caused the air fuel ratio sensor to fail. When an engine light comes on, the first thing to do is scan the vehicle's computer for codes. Part 1 of 7: Identifying the malfunction indicator light The indicator light that is associated with an air fuel ratio sensor will illuminate with an amber color.

Usually an engine light will come on letting the operator know that something is not functioning properly. When this sensor fails the engine will not perform optimally and can pollute the environment. Air fuel ratio sensors, commonly known as a oxygen sensors, tend to fail within the driveability system of vehicles.