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Tachometer wire

Just fitted an after market led plasma tachometer but having a problem with the data. Powers up fine and does a self test but no signal from pin number 7 from the ECU which should be the tach signal. Also tested the signal wire with a multimeter and measures only in mA.

 

Any advice lads?

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    Just to add the colour of the rpm wire connecting to the ECU is green with silver dots where as others have yellow with red stripes. My Z is an import. May be the scotch connector has not contacted the wires.

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    Does anyone know what voltage reading the rpm signal should have whilst idling? Need to confirm that pin No7 on the ECU is working fine.

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    • Author

    Not having any luck with the rpm signal from the ECU, no current detected by my multimeter but my standard tachometer works fine. Does anyone know how to connect the tachometer gauge to the negative terminal of the ignition coil?

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    Well no look once again. Had the ECU out today and took off the scotch connection from the rpm signal and retaped into the signal. My plasma still is not getting the signal and when i use a multimeter it only measures in mA not volts.

     

    Please can anyone help.

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