How Long to Leave Battery Disconnected to Reset ECU?
If you're wondering how long to leave battery disconnected to reset ECU, the short answer is usually around 15 to 30 minutes, but there are a few things you should know before you go pulling cables under the hood. It's one of those classic "driveway mechanic" tricks that sounds simple—and it mostly is—but doing it right means understanding why you're doing it and what happens once you plug everything back in. ...