When its cold, the glow plug light doesn't stay on for very long at all
Vince, if a gp has died what does the ECU do to notify the driver
So the light not staying on means the plugs are not seeing power.
Right, so then being like the idi engines.. the light will go off when the relay has kicked out.
You can confirm by pulling the connector off the sensor on a cold morning... if you get a longer glow plug light diagnosis confirmed.