wasn't sure if this is the right place for this question but here goes anyway.

i have put a 13b-rew engine from an fd into my fc t2. i have joined the two looms, wire harness together and the car runs so im quite happy.



the question is what wire from the ecu triggers the fan relay? i think it is pin 3d and at 100c that pin goes live but only gives .5v. this isnt enough to flick the relay. any ideas????????????? https://www.nopistons.com/forums/pub...IR#>/blink.png

maybe you could try to run an IC opamp as a prerelay relay? That make any sense? it kinda does in my head, i think.

???????? are you saying use something that works on lower voltage to flick current to the relay?????????



sounds interesting but complicated. i could just put a thermo switch on the top hose that will switch on the fan but i thought it would be nice to run it like it was in the fd. its an apexi pfc ecu and from what i had been told, the temp for the fans to come on can be set with a data loggit. i was sure that i had the correct pin but as it isnt high enough volts i may have been wrong. https://www.nopistons.com/forums/pub...1047683664.gif

do you think a different relay might do it?

cant figure out how the ecu controls the fans so will be connecting the relay straight to the fan thermo switch.