How to test compression using map sensor voltage, the Secrets of Compression: Map Sensor Voltage

**Unlocking the Secrets of Compression: Testing with MAP Sensor Voltage** Have you ever wondered how to test engine compression using MAP sensor voltage effectively? This method can provide valuable insights into your engine’s performance and health. Let’s explore the process and how this technique can help you diagnose potential issues and optimize your engine’s efficiency! This fun test will help you understand how to use voltage with an oscilloscope to identify poor compression. While you can check for misfires by examining the cylinder, injector pulse, and ignition, this method demonstrates how vacuum affects MAP sensor voltage. Enjoy this video!