Rover MEMS fault code reader

Richard C

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Mar 2, 2002, 6:50:33 PM3/2/02

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Anyone know if you can get a cheapish fault-code reader for the Rover
MEMS engine management system used on the K-series engine and later
Minis? Gunson don't do one. An expensive trip to the main dealer seems
a bit daft every-time my Mini develops an ignition fault (which is
quite often! - built on a Friday afternoon I'm sure!) E-mail me if you
can help. Thanks.
lyndh...@hotmail.com

Andrew Garner

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Mar 5, 2002, 4:25:51 PM3/5/02

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"Richard C" <lyndh...@hotmail.com> wrote in message
news:247e985d.02030...@posting.google.com...

> An expensive trip to the main dealer seems
> a bit daft every-time my Mini develops an ignition fault

If you're in the midlands - Best of British (0121 526 5444) do MEMS testing
at very reasonable rates, they also sell s/h ones cheap too.

Chiron

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Mar 6, 2002, 5:43:50 AM3/6/02

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I am currently working on a means of extracting info from these damm
ecu's. I have a Rover 214Si which suffers ecu problems on a regular
basis. The trickiest to fix was the crank angle sensor (CAS), which
causes stalling and non starting. Dont bother taking it to rover. All
they will do is plug it into their machine which will promptly tell
them that no faults have been found. Then "nothing wrong with it mate"
will be their response. Basically they rely on the fault codes to
diagnose your car. the MEMS system has limited fault codes that only
flag circuit faults. It does this by looking for out-of-range values
from the sensors. However in the example of the CAS, the sensor was
fine electrically however the signal it produced was not of sufficient
amplitude to trigger the ecu but because it wasnt open or short
circuit, the ecu did not flag it as a fault. Rather amusing was when i
went to collect the car from rover only for it to refuse to start
right in front of their reception, this was just after they told mw
there was nothing wrong with it.

Richard C

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Mar 6, 2002, 4:05:26 PM3/6/02

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chi...@chiron77.freeserve.co.uk (Chiron) wrote in message news:<68b26e5f.02030...@posting.google.com>...

> I am currently working on a means of extracting info from these damm
> ecu's. I have a Rover 214Si which suffers ecu problems on a regular

Funny you should say that - exactly the same problem with my Mini!
Aparrently the MEMS unit does not output information passively - you
have to feed it codes to make it respond - Rover will not supply
information on how to do this. I heard a story of one bloke connecting
up a laptop and getting it to send random codes to the unit until it
responded. Wasn't there an EU inquiry into car manufacturers not
making ECU fault code information public knowledge and thereby
creating a servicing monopoly for their own cars? I don't know what
became of this.

AndrewMacFadyen

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Mar 7, 2002, 11:48:14 AM3/7/02

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The Rover crank angle sensor is easiest check with an scope I use a very
basic (ie cheap -- 70 quid) Picoscope ADC40 plugged into the printer port
of a PC the standard range is -5 to +5 volts but with a few extra home made
probes and signal conditioners I can look at most signals. For pro use
though Pico make high speed twin channel scopes.
see http://www.picotech.com/ where you will find loads of info

"Chiron" <chi...@chiron77.freeserve.co.uk> wrote in message
news:68b26e5f.02030...@posting.google.com...

Chiron

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Mar 7, 2002, 10:13:01 AM3/7/02

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I would be interested in speaking to people who are interested in
cracking these ecu's and possibly trying a collective effort to get
some info from them

AWM

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Mar 7, 2002, 10:42:02 AM3/7/02

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There was a guy working hard at it on the Rover 800 mailling list working on
it a couple of years back but I think it came to nothing.

http://groups.yahoo.com/group/ then search Rover 880

"Chiron" <chi...@chiron77.freeserve.co.uk> wrote in message
news:68b26e5f.02030...@posting.google.com...

mr.philip...@gmail.com

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Oct 11, 2015, 9:34:24 AM10/11/15

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have a look at http://www.pscan.eu/

Chris Whelan

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Oct 11, 2015, 9:49:55 AM10/11/15

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Does this take the record for the latest reply ever?

:-)

Chris

--
Remove prejudice to reply.

Dave Plowman (News)

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Oct 11, 2015, 10:14:07 AM10/11/15

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In article <4OtSx.1$u6...@fx25.am4>,

The car in question is probably scrapped by now. ;-)

--
*Young at heart -- slightly older in other places

Dave Plowman da...@davenoise.co.uk London SW
To e-mail, change noise into sound.

Mr Pounder Esquire

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Oct 11, 2015, 12:39:07 PM10/11/15

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"Dave Plowman (News)" <da...@davenoise.co.uk> wrote in message
news:5510ec7...@davenoise.co.uk...

> In article <4OtSx.1$u6...@fx25.am4>,
> Chris Whelan <cawh...@prejudicentlworld.com> wrote:
>> mr.philip...@gmail.com wrote:
>
>> > On Saturday, March 2, 2002 at 11:50:33 PM UTC, Richard C wrote:
>> >> Anyone know if you can get a cheapish fault-code reader for the Rover
>> >> MEMS engine management system used on the K-series engine and later
>> >> Minis? Gunson don't do one. An expensive trip to the main dealer seems
>> >> a bit daft every-time my Mini develops an ignition fault (which is
>> >> quite often! - built on a Friday afternoon I'm sure!) E-mail me if you
>> >> can help. Thanks.
>> >
>> >
>> > have a look at http://www.pscan.eu/
>
>> Does this take the record for the latest reply ever?
>
> The car in question is probably scrapped by now. ;-)

Any idea why these blasts from the past keep appearing?

Chris Whelan

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Oct 11, 2015, 12:54:16 PM10/11/15

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Mr Pounder Esquire wrote:

[...]

> Any idea why these blasts from the past keep appearing?

A combination of Google Groups and stupidity, I suspect.

jamesp...@gmail.com

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May 28, 2020, 5:52:18 PM5/28/20

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Can I have this as latest reply?
I am still working on it but have some code working for various MEMS ECU versions,
starting it as a web application too which works through google chrome with the right USB cable
https://rovermems.com/