How do you check the fuel injecter to see if they are working
Mar 15, 2013 at 7:58 PM
JACOBANDNICKOLAS
✓Experienced Mechanic
110,244 POSTS
You use what is called a noid light to see if fuel injectors are getting power. It basically is nothing more than a light. You unplug the injector and plug the light into the power supply. When you crank the engine, the light should flash on and off.