Additional Fuel

This page explains how to connect Arduino MID to additional fuel line like LPG or CNG

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Software intervention

Hacking communication with switch If you have similar switch ... probably will be possible to connect additional fuel system to ArduinoMid.

STEP 1

With multimeter you can find communication wire, any voltage drop or rise between ground and one of the wires is good starting point. This instability of voltage need to be repeatable period, between 2/15 seconds. Also by switching fuels, voltage drop/rise confirms finding of communication wire.

STEP 2 [todo]

so you are searching for some voltage drop / rise ( instability ) every / from 2 to 10 seconds

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Physical intervention

Solder wire to the fuel reporting diode

[todo]