Rover MEMS 1.6 / 1.9 ECU diagnostics software. Free/Lite edition.
MEMS_Diag is an application designed to communicate with pre-OBD Rover engine management systems (ECU).
Modular Engine Management System (MEMS) was used on many cars in the 1990s built by the Rover group (models equipped with K-Series petrol engine)
Currently only MEMS 1.6 and 1.9 are supported, later versions are OBD2 compliant so they're not in the scope of this project
Implemented features:
- Realtime engine parameters (rpm, map, ignition advance, coolant temp, inlet temp, oxygen sensor, fuel trim/correction and more...)
- Retrieve and erase error codes
- Scrollable view (numerical/table display)
- Graph view (selectable parameters, multiple series)
- Data logging, csv format (available in full version only)
In order to use this software, the following components are required:
- Android device (smartphone), minimum OS version 3.1+ (USB host access)
- USB port
- the so-called "USB OTG" cable
In addition to the above, depending on the MEMS version, you also need:
for MEMS 1.9:
- FTDI-based (FT232) 12V K-Line interface (USB->OBD2 socket), commonly known as VAG-cable/VAG-KKL. These cables are widely available on ebay etc. Make sure it's build using the FTDI USB chip, perhaps PL2303 should also work but I haven't been able to test it. Avoid products based on CH340 chipset (reason being: there's one missing but crucial function not yet implemented in the driver)
for MEMS 1.6:
- Any USB-to-TTL converter, again, the most popular are FTDI and PL2303. Remember that MEMS 1.6 uses 5V logic (depending on the quality of the converter circuit a 3.3 V may also work)
Tested ECU models/part numbers:
So far the following ECU have been verified to work correctly:
MKC103610 (MEMS 1.6)
MKC101610 (MEMS 1.6)
MKC104393 (MEMS 1.9, LandRover Freelander 1.8 Petrol 99')
Free / Lite Version limitations:
- Data logging disabled
- Execution time limit, after 120 data samples the application quits (2 min @ default 1s refresh rate)
For more info, please visit http://memsdiag.blogspot.com
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