Review on 🔧 GoolRC Fuel Injector Tester with 4 Pulse Modes - Fuel Injector Flush Cleaner Adapter Cleaning Tool Kit by Ricardo Stewart

Device works. The reason I only gave it 2 stars is because it doesn't start the injector automatically. Instead, the user has to constantly press the pulse button, which is similar to turning a battery on and off. I figured I could set the pulse length and then turn it on so it turns on and off with a short, medium, or long pulse length and interval. I've seen other devices online work the same way. I would suggest buying one of these or just use the button/switch on the spare battery and plug it in.