CHAPTER 11
CHAPTER 12
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MXm
MXm can receive RPM value from the ECU. If on the contrary your vehicle does not
have an ECU you can sample RPM using the wire labelled “RPM” of 37 pins connector
harness you find in the kit.
To get the RPM from the ECU you only need to connect your MXm to the ECU and it
will automatically sample that value.
The output labelled “GRAY TACH” gives a 5-50V output that can be directly sampled
by MXm.
11 New firmware upgrade
12 RPM
12.1 RPM from ECU
If your vehicle has no ECU you need to connect the wire labelled ” RPM” of 37 pins
connector harness to the ignition system. This way MXm can read the signal form the
low voltage of the coil (whose peak can be from 150 to 400 V) or from a possible
square wave (the peak can be from 5 to 50 V).
The image below shows an example of wiring of the ignition system.
12.2 RPM via a 5-50V square wave or coil
(150-400V)
Our technicians and engineers are constantly working to improve both the firmware
(the application that manages your device) and the software (the application you in-
stall on your PC).
Each time a new firmware and/or software version is available the icon here above
appears with an arrow indicating that something is available for download (otherwise
the icon only shows the cloud).
Click it and freely download the new applications.
Once the new firmware has been downloaded connect your device to the PC via
Wi-Fi to perform a firmware upgrade. In a few seconds the device is ready.
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