Sure hope there's still people watching this forum as it's way down on traffic.

I am trying to diagnose a no fire on cylinder #4. It has compression, spark (new plug & wires), but no fuel, so it is not firing at all. I have done a continuity test on all the injectors and they are good. OHM test is also good. So I don't know if the injector is getting voltage or not.

Several months ago the injectors were sent out for test and cleaning. I am only able to test through the harness connector as I don't want to remove the intake plenum. The manual says the injectors fire by a signal from the ECU which provides "battery voltage". I am assuming that means 12 volts.

I want to momentarily apply voltage to each injector to see if I can hear the click, but I don't want to over voltage. Can anyone confirm that 12v from battery will be safe to fire the injectors?

Also would it be possible to connect my noid light to each pin (+ grnd) of the harness connector and turn the engine over to confirm power?

Thanks