How to read MBE ECU / K-Series

[Caterhamburger]

Hello Piston Heads,

Hoping to get some help from you guys in the UK.
I want to get connected with the MBE 967 on my caterham 1.8 K series from 2002.
So far i have dowmloaded the easimap software on my Laptop,
now i am thinking abot buying a suitable diagnostic cable to get into the ECU.
The car has fitted a 16 way "OBD" port, as you guys maybe know there was no OBD in caterham K Series cars at all.
This connector is wired on 5 Pins, wire colors are white/blue , white/yellow, black, white and purple/blue.
Finally it should be noted that my laptop has only USB ports.

Regards
Michael

[F355GTS]

Do you not have a serial connector (9 pin) on the ECU ? you can get the cable from SBD but you'll then need a USB to serial connector. You'll also need the pin number for the ECU, default for MBE is 0000 but Caterham used to set a different number, do a search on Google you may find it somewhere alternatively you can read the file in Hex and the code can be deciphered from there

[MK3 Dan]

Hi Michael,

It will be this you neeed:

https://www.sbdmotorsport.co.uk/index.php/products...

Worth noting this though:

'Please note that all Cosworth & Caterham MBE ECUs are locked during manufacture, which means they cannot be modified in any way. You can only use the CAN mapping kit & Easimap 6 software for Real Time Viewing as an aid to diagnosing faults with sensors & replacement or setting up of throttle pots.'

[CycleSi]

PM me if you want the code

[Caterhamburger]

are you sure that the MBE 967 are doing CAN?

the connector shown on the sbd website is a OBD2 connector 2006 onwards.

mine is from a K-Series Engine 1998-2002 and has a different pinout.

[Caterhamburger]

[Caterhamburger]

[Caterhamburger]

Can anyone confirm that the SBD connector will work with that pinout ??

[Red Seven]

No, the SBD CAN interface will not work with a 967.
If you don't already have a 9pin D shell serial connector wired to the ECU, then you'll need to add one into the loom. You'll then need a good quality USB to serial adaptor. I've tried cheap Ebay ones, but comms kept dropping out. I then bought one of these, which has been fine.

https://www.ebay.co.uk/itm/StarTech-1-Port-USB-to-...

then use Easimap 5.5

[Caterhamburger]

Hi Red Seven,

no, there is no 9 Pin serial connector installed anywhere in the car, just this "OBD" thing.
Can you please tell me the pins of the ecu loom wich i must connect the serial plug wires to!
Am i right, do i have to solder the extra wires parallel to the loom and nothing else like resistors?