jamiecroton

Thanks Adam , So i need to change the ploarity to High or low ??

Hi guys im new to tunning and doing a Atom in a jet boat running a 1UZFE. the issue i have is my outputs will not switch a relay. For example I have Aux 3 set up as Fuel pump, It is also setup to be a standard fuel pump (off in the pclink). I have 12v coming out of the out put on my DMM when i turn the unit on (i have a 4sec prime setup) but it will not switch the relay to power the pump. Batt at pin 30 fuel pump 87, ECU output 85 and earth on 86. do i need to do something different to make work ?? Thanks Jamie