What's the difference between aftermarket engine control units (ECUs) versus stock or OEM engine control units? We'll tell you! As we've discussed quite a bit in our articles in the past, your vehicle's engine control module (ECM) is really at the center of your engine. It monitors, controls, and regulates everything from your transmission to fuel...The post What's the Difference? Aftermarket vs Stock Engine Control Units (ECUs) appeared first on CarComputerExchange.com.
