View Full Version : fuel pump diode

10-06-2002, 08:25 PM
Fuel pump relay is intermitent although power is being supplied by the computer and there is no interuption in power from hot line. I've tested everything regarding my problem. I was just wondering if anyone can tell me
What is the purpose of the diode?
and what happens when it malfunctions?


10-07-2002, 04:21 AM
I can say usually the purpose of a Diode (excepting <i>light emitting</i> diodes) is to restrict the flow of electric current to one direction. So in this case, it probably regulates the relay switch.