Paul Hassell Posted May 24, 2016 Report Share Posted May 24, 2016 Morning all, Can I use the AUX 2 from each ECU to switch a single fuel pump, to enable me to run each engine seperatly or will they back feed to each other causing problems ?Currently I am only switching the fuel pump from the left ECU but this means I have to have the left engine running before the right engine can be started.Thanks in advance. Quote Link to comment Share on other sites More sharing options...
Scott Posted May 24, 2016 Report Share Posted May 24, 2016 So long as both Aux 2's are driving low, and the other side of the relay's activation coil is an ignition switched power supply I see no problems. Quote Link to comment Share on other sites More sharing options...
Paul Hassell Posted May 25, 2016 Author Report Share Posted May 25, 2016 Thank you Scott, I may change the wiring for the fans so they are triggered by both ECUs too as currently they are only wired to 1 ECU. Quote Link to comment Share on other sites More sharing options...
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