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EFI Wiring Fundamentals

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Discussion and questions related to the course Motorsport Wiring Fundamentals

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so, i got a mtx-D egt and olie pressure and temp. Sensor.

Is it posible to connect them tot the ecu.

On the instructions I can’t find a output for a ecu connecting.

Is this possible?

dear regards.

All the manuals are here: https://www.innovatemotorsports.com/support.php

It would seem to me you can not connect them to your engine ECU. They seem to mostly work as stand alone gauges, but have data logging ability when connected to a laptop with a serial cable. I could be very wrong.

I guess the ECU inputs would have to come directly from the sensors rather than from the gauge.

Thanks Jonny,

i'm assuming the sensors are voltage based, so then i could connect both the gauge and ecu to the sensor directly ?

or could this possibly give some problems ?

I would say most likely not. Someone tried on our forum (Link) with a similar MTX gauge and it does some weird stuff, it seems like it has only a single channel ADC inside and switches between measuring the two sensors, when it does that it has to turn the pull-up resistor on and off everytime so the ecu will just see a constantly cycling input.

Have a look at this post from about half way down the page: http://forums.linkecu.com/topic/5878-connect-oil-pressure-and-oil-temp-sensors-to-analog-inputs/

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