Review on ALLOSUN EM276 Fuel Injector Tester by Rob Madden

I thought this review unit was well designed. I have seen others that are smaller and for me this one had the best design. When it gets down to business, you don't need a 12-volt connection or a tester! But doing the right test with a tester is much easier. It depends on the impulse switch. There are others that take a 9 volt battery and some wires and plug it into the nozzle port and when they open they take a can of aerosol cleaner and clean it. It will not clean the inside of the injector unless you have the ability to open it by electrical means. One thing I've learned is that modern gasoline certainly has a lot of dirt that gets collected and pumped into gas tanks, and dirt can build up on the injector screens and get stuck in the injector itself.