Thread: How to check if injector stuck ?

its easier to use a multimeter and check the resistance of the injectors. I have never heard of an sr20 injector being "stuck". It should be between 10 and 14 ohms. Slightly higher and its on its way out, if its completely bad it will show like 70 or 80+ ohms.

I always just tap the injector with a wrench. If its not fully stuck, it will correct itself when you tap. But also, this doesnt work on a fully stuck injector.