Is it normal to have power to injector with key off?
Is it normal to have power to injector with key off?
Having power to the injector with the key off may be normal as most systems run the return side of the circuit through the ECU and no current flows in the circuit until the ECU commands the injector to turn on. Did you compare other injectors also to what you found on that one?
What happens when the fuel injector fuse is blown?
It was driving fine, and then suddenly the engine died shortly after exiting the freeway. Fuel pump seems to be fine, but the fuel injector fuse is blown and when replaced, blows again. Clicking this will make more experts see the question and we will remind you when it gets answered. You can’t post conmments that contain an email address.
How to test the wiring on a fuel injector?
How to Test Injector Wiring 1 Electrical Short Testing. Disconnect all the fuel injector electronic plugs on the engine. 2 Voltage Testing. Turn the ignition key to the “On” position. 3 Fuel Injector Resistance Testing. Turn the multimeter to “Ohms.” Place the multimeter leads into the fuel injector plug terminal. …
Why does my injector keep switching to ground?
They very likely switch ground as that’s actually easier to do, electronically. If you see power across the coil of that particular injector all the time, you may have a pinched wire that’s now shorted to ground, for instance. More than likely the driver in the computer for that injector has failed.
It was driving fine, and then suddenly the engine died shortly after exiting the freeway. Fuel pump seems to be fine, but the fuel injector fuse is blown and when replaced, blows again. Clicking this will make more experts see the question and we will remind you when it gets answered. You can’t post conmments that contain an email address.
Having power to the injector with the key off may be normal as most systems run the return side of the circuit through the ECU and no current flows in the circuit until the ECU commands the injector to turn on. Did you compare other injectors also to what you found on that one?
They very likely switch ground as that’s actually easier to do, electronically. If you see power across the coil of that particular injector all the time, you may have a pinched wire that’s now shorted to ground, for instance. More than likely the driver in the computer for that injector has failed.
When does the injector stop spraying when the engine is running?
So – just to clarify – that injector stops spraying when you turn the key off, sprays for four seconds when you turn the ignition on and sprays all the time (no pulses) when the engine is running? That spraying for four seconds is part of the system priming.
