devolutio
4th October 2006, 02:51 PM
hey all,
I wired up my engine ages ago with a relay controlling the fuel pump, triggered by the FC terminal on my jdm ecu. works fine. but another part of that ecu is esploded... (tvis doens't work)... so i tried another jdm ecu (same model, different internals) and as soon as i plug the ecu in (even with ignition off) the fuel pump starts up.
i have an australian bigport ecu and I plugged that in. the fuel pump behaves correctly, only running either when i'm starting, or the engine is running. so I figure my wiring is correct...
i bought another jdm ecu today and it does the pump 'always on' thing. so I have three jdm ecus (model number all end in "51") - two keep fuel pump on, one doesnt. anyone know if there was a wiring revision or something?
on a side note... i will not run my fuel pump from the ignition before anyone suggests it.
thanks
I wired up my engine ages ago with a relay controlling the fuel pump, triggered by the FC terminal on my jdm ecu. works fine. but another part of that ecu is esploded... (tvis doens't work)... so i tried another jdm ecu (same model, different internals) and as soon as i plug the ecu in (even with ignition off) the fuel pump starts up.
i have an australian bigport ecu and I plugged that in. the fuel pump behaves correctly, only running either when i'm starting, or the engine is running. so I figure my wiring is correct...
i bought another jdm ecu today and it does the pump 'always on' thing. so I have three jdm ecus (model number all end in "51") - two keep fuel pump on, one doesnt. anyone know if there was a wiring revision or something?
on a side note... i will not run my fuel pump from the ignition before anyone suggests it.
thanks