Whollahii Posted September 11, 2019 Report Share Posted September 11, 2019 I have connected an output from the ECU to the rpm input of my AIM mxl strada dash and selet de tacho in the ECU software. But the rpm is not correct on the dash. What duty cycle and multiplier should be selected in the ecu to fix this? Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 11, 2019 Report Share Posted September 11, 2019 Typically in the ECU settings a multiplier of 1 and a DC of 50% will be the easiest. A multiplier of 1.0 means the ecu will output 1 pulse per ignition event. In the dash software you may also need to change the multiply factor. I think /4 would be normal for a 4cyl engine with direct spark ignition. Quote Link to comment Share on other sites More sharing options...
Whollahii Posted September 11, 2019 Author Report Share Posted September 11, 2019 3 hours ago, Adamw said: Typically in the ECU settings a multiplier of 1 and a DC of 50% will be the easiest. A multiplier of 1.0 means the ecu will output 1 pulse per ignition event. In the dash software you may also need to change the multiply factor. I think /4 would be normal for a 4cyl engine with direct spark ignition. Thanks for the quick reply! I’ll try those settings. For a two rotor rotary engine, would /4 also be the setting to use? Since there’s 4 coils? Quote Link to comment Share on other sites More sharing options...
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