FD3S Fuel Voltage Low, Resistor

***ZGN*** · 02-12-2011, 05:16 PM

I have been reading on fd3s.net about this:

Low speed is active at idle and under 3K rpms through the fuel pump resistor fed through the main relay. High speed runs through the fuel pump relay which the ecu controls; the fuel pump relay supplies battery voltage to the pump when it is closed. The ecu toggles this relay so the ecu actually controls the fuel pump speeds.

Does the PowerFC have a setting that can control this?
What other fuel pump relay are they referring to ? is it the relay Mounted on Left Inner Fender in the wide Relay Box

02-12-2011, 05:16 PM	#9
*ZGN* Administrator Join Date: Jan 2008 Location: Birmingham, AL Posts: 2,264 Rep Power: 10	I have been reading on fd3s.net about this: Low speed is active at idle and under 3K rpms through the fuel pump resistor fed through the main relay. High speed runs through the fuel pump relay which the ecu controls; the fuel pump relay supplies battery voltage to the pump when it is closed. The ecu toggles this relay so the ecu actually controls the fuel pump speeds. Does the PowerFC have a setting that can control this? What other fuel pump relay are they referring to ? is it the relay Mounted on Left Inner Fender in the wide Relay Box __________________ Kevin Last edited by ZGN; 02-12-2011 at 05:26 PM.