Welcome

Here is a collection of information, software, products and services surrounding Rover MEMS ECUs.
This applies to cars (engines) from around 1991-2000+ including Rover (Mini, Metro, 100, 200, 400, 600, 800), MG (F, TF), Lotus Elise, Kit cars - Caterham, Morgan, Westfield etc

I have spent time working on these ECUs and can now provide diagnostics software for all of the ECUs listed
I can also modify the 2J type ECU to allow them to be remapped
The MEMS 3 ECUs can be remapped over the diagnostic port without making any physical changes
I am currently working on the older 1.6 MEMS ECU with a hope to allow remaps to those too

Please enter either the Diagnostics or Remapping sections of the website to learn more
Pictures and a description of the ECU types are listed below

Social Media

We now have an Instagram account
Follow us for the latest progress updates


ECUs

There is a mixture of ECU versions across various cars including Rover Mini, Metro, 100, 200, 400, 600, 800, Land Rover, Lotus, MG, MGF

MEMS 1.2 ECU
MEMS 1.2 ECU

VERY early SPI cars (1991) without Catalytic Converters- 1x36 pin connector, smooth lid, X on the base/bottom, vacuum connector on the corner

MEMS 1.3 ECU
MEMS 1.3 ECU

Tend to be used on early SPI cars (1992-1993) - 3 pin round diagnostic connector - 1x36pin and 1x18pin connector - lines and screws in the lid - vacuum connector between plugs

MEMS 1.6 ECU
MEMS 1.6 ECU

Used mostly for SPI cars and some early MPI cars (1993-1999) - 3 pin round diagnostic connector - 1x36 pin connector, sometimes also 1x18 pin connector - lines in the lid, but no screws in the lid - vacuum connector next to first plug

MEMS 1.9 ECU
MEMS 1.9 ECU

Used in MPI cars - 16 pin "OBDII/OBD2" style diagnostic connector - cross on top, vacuum line next to the main connector

MEMS 2J ECU
MEMS 2J ECU

Uused in Mini MPIs and cars with VVC - 16 pin "OBDII/OBD2" style diagnostic connector - 2x36pin connectors, left black, right red - large X in the lid - no vacuum connector

MEMS 3 ECU
MEMS 3 ECU

Used in newer MPI cars with/without VVC - 16 pin "OBD" style diagnostic connector - no vacuum connector


Contact: email me
Disclaimer: This website is not associated with Rover in any way. This exists because there is no support for these older cars/ECUs