MEMS 1.9 ECUs
Overview
Please see the sections below, I can provide diagnostic applications and cables for the MEMS 1.9 ECU
16 pin OBD/OBDII/OBD2 style cable
This cable suits all cars with the MEMS 1.9 ECU
I am now selling these directly from the website, secure payment taken via stripe.com
I post using Royal Mail with tracking, I will send you the tracking link once the postage has been arranged.
Diagnostic application - Windows/Mac/Linux
The most up to date application is here for Windows/Linux
Web/agent application
This is a web based application that works in Windows/Max/Linux computers or laptops
Web application
If you need a Windows driver for a 16-pin FTDI based cable then you can download it here:
FTDI driver
Remapping
These ECUs are similar to the 1.6 ECUs but need more work before remaps would be possible.
There is a piggyback option which could work to adjust ignition timing but needs finishing and testing.
Even so, I can download the original data from these ECUs,
There is an online editor for ECU maps here: ROM Editor
Technical information - diagnostic communication
In case you are a programmer or would like more info about communication with the ECUs for diagnostics, here it is
ISO 9141 5-baud wake up with ECU address 0x16, then invert second byte in ECU reply
Connect at 9600 Baud rate, 8 bits, 1 stop bit, NO parity
K-line communication over a single wire
You literally get your own transmissions as echos on K-line
Send single bytes (commands) at a time, ECU echos your command back to you, and will respond with more data if it is an acceptable command
Send byte 0x16 at 5 baud rate, then swap back to 9600 baud rate treat it like a 1.3/1.6 ECU including doing the 1.3/1.6 init sequence
Most serial cables won't do 5 baud rate so you can use breaks to do this, only some cables allow breaks to be used in this way
5V TTL level must be used or the ECU will not respond
No auth beyond the init sequence
Shared data packet format with 1.2/1.3/1.6/1.9 ECUs, see The technical page
Disclaimer: This website is not associated with Rover in any way. This exists because there is no support for these older cars/ECUs
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