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Whollahii

Tacho output

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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?

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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. 

BaVXqlo.png

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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. 

BaVXqlo.png

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? 

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