My oil and pressure gauge has been working great for about 5 years and a few weeks ago it started reading 0 - 150 back and forth and then it went to just reading dashes. I pulled over and checked the dip stick and it’s showing I’ve got oil. Is it the sensor bad? I emailed AEM and they said:Anyone have any pictures of how this is done?

 

The information AEM gave you explains what you need to do. If you look at the plug on the sensor, there's a piece of rubber (usually grey in color for most AEM sensors) that seals the wiring where it enters the plug to keep moisture and debris out. Use a small screwdriver or metal pick to carefully pull that piece of rubber back from the plug, exposing the pins. Alternatively, you can slip a thin piece of metal, like a straightened paperclip or sewing needle, into the back of the plug at each pin without removing the rubber plug. This is referred to as back probing. All you're trying to do is establish a connection at each pin to test across the pins with a voltmeter. If the readings are out of spec, replace the sensor.