L200 4g63t Posted March 16, 2020 Report Share Posted March 16, 2020 hi there i had a look in the forums for this and couldn't find any thing to answer my question. i have the vr4 plug and play ecu and im wanting to set up a tacho in my car but the issue is that the ecu tach signal is only 5 volts and i have a 12 volt tacho ( well i have a couple now a 12+ and a 12-) my question is how do i change that signal to make my tacho work Quote Link to comment Share on other sites More sharing options...
Adamw Posted March 16, 2020 Report Share Posted March 16, 2020 The Aux outputs are 12V. What output are you connected to? Are you sure your tacho is not a "hi level" tacho that needs ~50volts? Quote Link to comment Share on other sites More sharing options...
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