The MA3.1 mono-motronic system is a development of the MA3.0 mono-motronic system which controls the ignition and injection
This device is adapted for the following engines
- TU1M+
- TU9M
The control unit uses a FLASH EPROM
This new technology allows the settings to be modified (for example, in order to improve drivability), without removing the ECU or replacing the Eprom
The operation consists of downloading the new programme into the ECU memory from suitable service equipment, via the diagnostics socket, after checking the normal operation of the system components
Reminder
- The coded anti-start must be unlocked
- Downloading can only function with a higher update number; it is therefore advisable to use this procedure with caution
- Re-initialisation will be necessary after downloading, followed by a fault code reading