When it comes to monitoring the health of your engine, an oil pressure gauge is a must-have tool. AEM is a leading manufacturer of high-quality gauges, and their oil pressure gauges are no exception. In this article, we’ll take a look at the wiring diagram for AEM’s oil pressure gauge, and provide you with some frequently asked questions to help you install and troubleshoot your gauge.
Wiring Diagram
Before we get started, let’s take a look at the wiring diagram for the AEM oil pressure gauge:
| Wire Color | Function |
|---|---|
| Red | 12V Power |
| Black | Ground |
| White | Signal |
The wiring diagram is fairly simple, with just three wires to connect. The red wire connects to a 12V power source, the black wire connects to ground, and the white wire is the signal wire that connects to the oil pressure sender unit.
It’s important to note that the AEM oil pressure gauge is designed to work with a 0-5V signal from the sender unit. If your sender unit uses a different signal, you may need to use a voltage divider or other signal conditioning device to convert the signal to the correct range.
Installation
Now that we’ve covered the wiring diagram, let’s take a look at how to install the AEM oil pressure gauge:
Step 1: Choose a suitable location for your gauge. You’ll want to choose a location that’s easily visible while driving, but won’t interfere with your driving or obscure your view of the road.
Step 2: Install the gauge into the mounting location using the supplied hardware. Be sure to use the correct size drill bit for the mounting hole.
Step 3: Connect the red wire to a 12V power source. This can be a switched or constant power source, depending on your preference.
Step 4: Connect the black wire to a suitable ground point. This can be any clean, bare metal surface that’s connected to the vehicle’s chassis.
Step 5: Connect the white wire to the signal wire from the oil pressure sender unit. This wire is typically green or yellow, but may be a different color in some applications.
Step 6: Turn on the vehicle and check that the gauge is working properly. You should see the gauge needle move as the engine’s oil pressure changes.
FAQ
Q: My AEM oil pressure gauge isn’t reading correctly. What should I do?
A: If your gauge isn’t reading correctly, the first step is to check the wiring connections. Make sure that the red wire is connected to a 12V power source, the black wire is connected to ground, and the white wire is connected to the signal wire from the oil pressure sender unit. If the connections are correct, you may need to check the sender unit or the gauge itself for a fault.
Q: Can I use the AEM oil pressure gauge with an aftermarket engine management system?
A: Yes, the AEM oil pressure gauge can be used with most aftermarket engine management systems. Simply connect the white wire to the appropriate signal output from your engine management system.
Q: What is the maximum safe operating pressure for the AEM oil pressure gauge?
A: The AEM oil pressure gauge is designed to handle pressures up to 150 psi. However, it’s important to note that most automotive applications will never reach these pressures, so the gauge should be suitable for most applications.
Q: Can I install the AEM oil pressure gauge myself, or should I have it professionally installed?
A: The AEM oil pressure gauge is designed to be easily installed by a DIY enthusiast. However, if you’re not comfortable working with automotive electrical systems, or if you’re unsure about any aspect of the installation, it’s always best to have the gauge professionally installed.
Q: Does the AEM oil pressure gauge require any calibration?
A: No, the AEM oil pressure gauge is pre-calibrated at the factory and should not require any further calibration. However, if you suspect that the gauge is reading incorrectly, you may need to recalibrate it. Consult the gauge’s user manual for instructions on how to do this.
