Use the pulse width to diagnose the fuel feedback control system.

How to check fuel injector pulse. Reattach the fuel lines to the new injector using the fuel line disconnect tool. Unplug the electrical connector from the fuel injector you want to test. In this video i show you how i test the circuitry on an older honda fuel injector using a noid light, a test light and a power probe.

Turn the ignition switch to the on. That'll indicate high resistance and a lot of amperage trying to open that injector. Remove the old injector from the engine and install the new one in its place.

Bst401 4 channel automotive fuel. Injector pulse width is the amount of time, measured in milliseconds (ms), that a fuel injector stays open (delivers fuel) during a cylinder intake cycle. As a result, there is no injector pulse while craking.

To check a blown fuse you. Maybe the injector is sticking. The nature of the cause of no injector pulse is that there is no power input.

When these fuses blow, the system they support stops working, and the engine stops running.