Rover Holic

Rover MEMS Mpi ECU Pin Out (Not Fully Complete or Checked)

Pin No.

Function

 Colour Code

A highly advanced 3rd generation  full engine management system the  MEMS system was developed by Rover in partnership with Motorola. While it is  based on the general principals and experience gained with the Motorola single point system fitted to the early single point injection 820 models it is both more advanced and robust and is generally regarded as highly reliable system. Unlike the earlier single point system no fuel or ignition settings are held in volatile memory.

Here are our guidelines for off-roading. This list is not comprehensive by any stretch of the imagination, but it represents what we have compiled from years of off-roading. Also, there are no guarantees.  Even if you follow all of these instructions, some mishap may still befall you.

Vehicle Preparation

POSTERS

Diff Guard
    * Fits all Land Rover Axles except Salisbury Type
    * Land Rover S 1, 2, 2A & 3 - 90/110 & Defender
    * Range Rover & Discovery

There is a simple formula to determine the correct size of carburettor to use.
Engine Size (CID)  X  Maximum RPM  / 3456 = CFM    @ 100% Volumetric Efficiency.
Example: 215 CID (3500cc)  X  6000 RPM = 1,290,000 / 3456 =    373 CFM
Approximately 373 CFM would be required for this engine.
However, most street engines are capable of achieving only about 80% VE;
A modified street engine with ported heads,good intake exhaust and carburettor can achieve about 85% VE;

Real Steel
    Unit9,Tomo Industrial Estate,
    Packet Boat Lane,
    Cowley, Middlesex.
    England. UB8 2JP
    Tel: 01895 440505     Fax: 01895 422047
We build power units for most applications:-  Kit Cars,Custom Cars, Hot Rods, Motor Racing, Marine etc.
Engine parts and accessories for :-

Engine Number
Model
Country
Engine cc

For about 4 years, while I worked at a Rover dealership ('87-93), we had a cam wear problem on 3.5L engines. It dated back a ways (prior to the USA intro), according to many sources, and was common on any engine with the "detox" or "low lift" cams (the NAS '87-88 3.5L had the low lift cams).

To a lesser degree, the other 3.5Ls were affected as well. A lot of cams were warranteed on 3.5L Rover engines from '87 until the last of those vehicles went out of warranty. Most engines affected.

Piper Cams