How to troubleshoot vehicle engine sensors & trouble codes

In this automotive mainenance tutorial you will learn how to troubleshoot the on-board computer in your vehicle. The on-board computer, also known as the ECU is what keeps everything in your engine running smoothly. If there is a problem, the computer lets you know with a system of codes. Unfortunately, these codes need to be deciphered. This tutorial will help you decipher the sensors and trouble codes put out by your vehicle's on-board computer and help YOU figure out what needs to be fixed.