Fuel pump trigger for aux pump

[qtrmile beast]

Can someone tell me what wire to use to trigger my aux sump pump. It already has its own relay and fuse just need to trigger(signal) wire to turn on aux. the sump pump is inline with fuel tank. Tank feed sump and sump feeds engine. The problem is getting the aux pump to turn on and off with the key. I don’t want just do any key on or off switch because I don’t want it running while ACC is on and the pump is running constantly until I turn key off..

The way I have it power wire (+) to the positive side and the ground to (-) not just need trigger

[5doorsoffury]

Well why not trigger it off of the itfp positive feed? I believe it only powered up with ignition. You can also get this signal from the fuel pump resistor ( ecu side). If you want a schematic i can help you out but unless you have a special requirment i would just let it go on and off with the itfp power. Wire pin 30 to gound and 87 to the sump ground. 85 and 86 goes in parrallell with the itfp wires . The polarity is not important as long as there is no flyback diode on the relay.

[qtrmile beast]

Originally Posted by 5doorsoffury Well why not trigger it off of the itfp positive feed? I believe it only powered up with ignition. You can also get this signal from the fuel pump resistor ( ecu side). If you want a schematic i can help you out but unless you have a special requirment i would just let it go on and off with the itfp power. Wire pin 30 to gound and 87 to the sump ground. 85 and 86 goes in parrallell with the itfp wires . The polarity is not important as long as there is no flyback diode on the relay.

Thank you a schematic would help from a visual aspect. I have a pin out that is stating that i need to hook my trigger to the 1H pin which is (looking from the wire side) 1 from the end on the lower right hand corner of the harness which is a brown wire.. is this correct? Also the 1 AA with i think its blue. which i think is 7 from the bottom right corner and think this one is a blue wire.....