Installing an AEM Failsafe Wideband gauge is one of the best ways to monitor your engine’s performance. It provides critical information such as air/fuel ratio, boost pressure, as well as other engine parameters. However, if you don’t have a proper understanding of the wiring diagram, the installation process can be pretty overwhelming. In this article, we will provide you with a comprehensive guide on everything you need to know about AEM Failsafe Wideband wiring diagrams.
What is AEM Failsafe Wideband?
Before we dive into the wiring diagram, let’s first discuss what an AEM Failsafe Wideband is. It is a device designed to provide accurate and reliable data on your engine’s air/fuel ratio. The device comes with a failsafe feature that will automatically switch your engine to a safe mode if the AFR reading falls outside of the user-defined range. This feature is particularly useful in preventing engine damage in case of a faulty sensor or other related issues.
Wiring Diagrams for AEM Failsafe Wideband
Wiring an AEM Failsafe Wideband gauge is not rocket science; however, it may seem a bit intimidating for the first time user. The good news is that the AEM Failsafe Wideband comes with a detailed wiring diagram that makes the installation process much more manageable. Below is a detailed guide on how to install an AEM Failsafe Wideband.
Step 1: Wiring the Power Source
The first thing you need to do is to identify the power source. You can use any reliable source that provides at least 12V. We recommend using a fuse box or battery terminals as they are more reliable sources for power. Before you connect the wires to the power source, make sure you check the polarity to avoid any potential damage.
You will need to connect the AEM Failsafe Wideband red cable to the power source. The black cable, on the other hand, should be grounded. Make sure you use a reliable grounding point to avoid any electrical issues.
Step 2: Wiring the O2 Sensor
The next step is to install the O2 Sensor. The O2 sensor is responsible for measuring the air/fuel ratio. The sensor comes with a blue cable that needs to be connected to the AEM Failsafe Wideband device. However, before you connect the O2 sensor cable, you need to install the sensor in the exhaust stream. Make sure you follow the manufacturer’s instructions on how to install the sensor correctly.
After installing the sensor, you can now connect the blue cable to the AEM Failsafe Wideband device. The sensor should start reading the AFR immediately.
Step 3: Wiring the Boost Pressure Sensor
If you have a turbocharged engine, you need to install a boost pressure sensor. The boost pressure sensor measures the boost pressure going into the engine. The sensor comes with a green cable that needs to be connected to the AEM Failsafe Wideband device.
Before you connect the boost pressure sensor, make sure you install the sensor in the correct location. The boost pressure sensor should be installed after the intercooler and before the engine. Once you have installed the boost pressure sensor, you can now connect the green cable to the AEM Failsafe Wideband device.
Step 4: Configuring the AEM Failsafe Wideband Device
Now that you have wired the AEM Failsafe Wideband device, the last step is to configure the device. The configuration process is pretty straightforward. You need to use the buttons on the device to set the desired range for AFR and boost pressure.
When configuring the device, make sure you follow the manufacturer’s instructions to avoid any issues. If you have any questions or concerns, you can always refer to the user manual.
FAQ
| Question | Answer |
|---|---|
| Can I use a universal O2 sensor with an AEM Failsafe Wideband gauge? | Yes, you can use a universal O2 sensor; however, we recommend using the AEM sensor for better accuracy. |
| What is the failsafe feature on the AEM Failsafe Wideband gauge? | The failsafe feature on the AEM Failsafe Wideband gauge is designed to switch the engine to a safe mode if the AFR reading falls outside of the user-defined range. |
| What is the boost pressure sensor for on the AEM Failsafe Wideband gauge? | The boost pressure sensor on the AEM Failsafe Wideband gauge is used to measure the boost pressure going into the engine for turbocharged engines. |
| What is the power source for an AEM Failsafe Wideband gauge? | You can use any reliable source that provides at least 12V. We recommend using a fuse box or battery terminals as they are more reliable sources for power. |
| Can I install an AEM Failsafe Wideband gauge on any vehicle? | Yes, you can install an AEM Failsafe Wideband gauge on any vehicle. However, you need to make sure you follow the manufacturer’s instructions and guidelines. |
Conclusion
Wiring an AEM Failsafe Wideband gauge is a simple process that requires some basic knowledge and skills. We hope this article has provided you with the necessary information on how to wire the device correctly. Remember to follow the manufacturer’s instructions and guidelines when installing the device. If you have any questions or concerns, do not hesitate to contact the AEM customer support team for assistance.
