Caterham K series diagnostic protocols?

[pscandoteu]

Hi

I have been developing software that works with Rover/Lotus ECUs. Specifically it works on the MEMS1.9 and MEMS2J ECUs. I have been using Rover tools to develop this, however testing (just last night) on Lotus S1 Elises indicates that it appears to work fine on these as well.

The tool was developed using an Elise S1 non VVC ECU, and with a Rover 200 BRM VVC ECU as these are what was available cheaply on ebay.

Someone mentioned that I should also look at Caterhams.

I know nothing about Caterhams, so do the K series Caterhams use Rover ECUs or do they use something else? Do they use MEMS1.9 and/or MEMS2J or do they use a later ECU (MEMS3 I guess?).

If so did Caterham modify the ECUs at all (like Lotus did) or are they stock Rover?

thanks

[CharlesElliott]

The maps are different, but they are basically stock Rover. Testbook works fine on a Caterham.

There are EU2 and EU3 variants. For example http://www.caterhamparts.co.uk/product.php?id_prod...

[pscandoteu]

is EU2 MEMS1.9 and MEMS2J, and EU3 MEMS3 ?

I think that MEMS3 is EOBD compliant

[CharlesElliott]

I believe that EU2 is MEMS2J and EU3 MEMS3.

Somewhere I have quite a lot of MEMS source code.....

[pscandoteu]

Hi Charles

Could you send me a PM with a way to contact you privately? I would REALLY like to talk to you about this.

[CharlesElliott]

Have sent you an email.

It's old school assembly language

[cmb]

Hi Charles,

Sorry for resurrecting an old thread, but I wasn't sure how else to get in touch with you -- could you contact me via email as well? I've been doing quite a bit of work with MEMS diagnostic protocol analysis and I'm very interested in this.

Thanks,
Colin

[Megaflow]

I'd be interested in hearing more about this, have got a blog or website that details the project?

[wortel123]

Hi Charles,

I know it is an old thread but I'm hoping you would be still active on this forum.

As an automotive engineering student I am collecting as much info as I can about MEMS ECU's. Right now I am reverse engineering MEMS ecu code. The main goal is to be able to remap. At this moment I know how to map Ignition, fuel, rev limiter etc. Any more info is welcome.

So I'm strongly interested in the MEMS source code you have.

Thank you in advance!

[DVandrews]

There is a ready market for remapping of Mems1.9/2 in Lotus and Caterham circles, currently only the Mems3 fitted to the Caterham can be readily remapped. If you have a packaged product available I’m sure there are some who would bite your arms off for it.

Dave

[CharlesElliott]

Hi, yes, I'm still here.

As a university project I wrote a static checker for the assembly code in the MEMS in readiness for the MG F project (although I didn't know that at the time). The checker validated the correctness of the assembly code as well as custom comments that were used for memory allocation etc. in the source. Rover gave me a range of source code files at the time to test the software and - as far as I know - went on to use it.

You should be able to email me through my profile.....

[xr4x4]

Hi,

Did anyone get any further with this?