6 Warning Signs of a Failing Engine Control Unit (ECU)
Experiencing engine stalling, rough idle, or poor fuel economy? Learn the top signs of ECU failure and how to diagnose and fix them before it gets worse. How to Spot, Diagnose, and Act on ECU Problems Before They Get Worse Your car might look like it's running fine on the outside, but at the heart of it all is a silent brain working behind the scenes the Engine Control Unit (ECU). This tiny computer is responsible for managing everything from your engine’s fuel injection to ignition timing and idle speed. When it fails, even partially, your car can behave erratically or stop working altogether. While ECU failures aren’t extremely common, they can happen especially in older vehicles or those exposed...