-it seems that those three little letters strike fear into many a promoter, track owner, or sanction head whenever they hear it. ECU stands for Engine Control Unit. Also called an ECM (Engine Control ...

With the right tools, ECM programming is no longer just for dealerships. Using a J2534 pass-through device, OEM software, and your vehicle’s OBD-II port, you can update, reflash, or recalibrate your ...

If you’ve never heard the term flashing an ECU before, no, it’s not showing a form of identification or using a photo flash—or any other type of flashing for that matter. Flashing an ECU is tuning or ...