Rover MEMS Fault Code Reader

WHAT IS MEMSFCR ?

Classic Minis and other cars fitted with Rover’s MEMS ECU have a special place on the road — full of character, but often tricky to diagnose when things aren’t running quite right. As these vehicles age and factory support has long since disappeared, many owners and workshops are left relying on guesswork, swapping parts, or chasing faults the hard way.

That’s where MemsFCR comes in. As a Diagnostic Tool for the Rover MEMS 1.3/1.6/1.9 fitted to Rover Single Point Injection vehicles, it was created to remove the mystery from the MEMS ECU, giving you a direct line of communication with the car’s brain. By showing you what the ECU is actually seeing — from sensor readings and actuator positions to stored fault codes — the app turns hidden electronic processes into something clear and understandable. Instead of wondering why the car is idling poorly, running rich, or struggling when cold, you can see the data for yourself and make informed decisions.

MemsFCR connects to the ECU using a simple USB serial cable and runs on any modern laptop device both online (web.memsfcr.co.uk) or offline with the installed application for Windows and MacOS. For enthusiasts, it’s a way to keep their classic running smoothly, catch small issues before they become big ones, and enjoy a deeper connection with the car. For professional garages, it’s a practical diagnostic tool: fast to set up, reliable in operation, and capable of reading and clearing faults as well as streaming live data.

At its heart, MemsFCR exists to keep these cars on the road — preserving their heritage by giving owners and mechanics alike the tools they need to understand, maintain, and enjoy them for years to come.

WHAT DOES IT DO ?

MemsFCR connects to your MEMS ECU via a special diagnostic cable that can purchased on eBay. All known ECU data parameters are displayed along with any faults that have been detected. All data can be downloaded as a CSV file for easy analysis using Excel or Google Sheets.