EML - Intermittant

There is only the obd2 on my bike.

You have a EURO 4 , and OMEX and you have a OBD2 connector ? Is it under the seat near the ecu like my SC ? Do you see the 9 pin D-sub serial connector directly on the omex unit ? (on the back opposite side of where the big harness plugs in ) This is not an upgrade bike right ? Meaning you had a SC then Norton upgraded it to an OMEX ? If that's the case then OBD2 will not work said so in the Norton TSB.

Yes, 2018 euro 4, omex, OBD2 connector under the seat, not been upgraded from SC. I can't see any 9 pin connector.
When I plug in the reader and turn on the ignition it just says Failed to connect.

This was one of my observations when they switched from SC to OMEX. What happened to the OBDII connector? I couldn't understand it at the time as to how they got away with it. Turns out that they probably just never told anyone. As it is I have well founded suspicions they never really passed the emissions testing in terms of the bike they submitted having the same map as those produced for sale. A lot of wink, wink, nudge, nudge. However it did mean we got the opportunity to get our hands on these bikes....

I am finding this very informative and fascinating ... So here is what I have so far :

SCS ECU Euro 3 , 35 pins on ECU , has OBD connector , communicates OBD2 protocols using 6 pins at OBD conn. 16,15,14, 6, 5, 4

OMEX ECU Euro 3 , 27 pins on ECU , no OBD connector , with 9 pin d-sub on ECU itself , or SCS to OMEX conversion with now non-functioning OBD connector .

OMEX ECU Euro 4 , 39 pins on ECU , has OBD connector , does NOT communicate OBD2 protocols using 8 pins at OBD conn. 16,14, 9 , 7, 6, 5, 4 , does not have 9 pin d-sub connector on ECU itself.

SCS ECU works with OBD2 Scan Tools using OBD2 standard industry protocols. OR using SXCar software available for free download using SCS interface/cable/laptop . OR unlocked SCS using SXTune software with free download using interface/cable/laptop.

OMEX ECU either Euro 3 or Euro 4 does NOT work with OBD2 Scan Tools , Euro 4 has OBD connector but may only work with OMEX software and interface/cable/laptop.

TonyA said:

I am finding this very informative and fascinating ... So here is what I have so far :

SCS ECU Euro 3 , 35 pins on ECU , has OBD connector , communicates OBD2 protocols using 6 pins at OBD conn. 16,15,14, 6, 5, 4

OMEX ECU Euro 3 , 27 pins on ECU , no OBD connector , with 9 pin d-sub on ECU itself , or SCS to OMEX conversion with now non-functioning OBD connector .

OMEX ECU Euro 4 , 39 pins on ECU , has OBD connector , does NOT communicate OBD2 protocols using 8 pins at OBD conn. 16,14, 9 , 7, 6, 5, 4 , does not have 9 pin d-sub connector on ECU itself.

SCS ECU works with OBD2 Scan Tools using OBD2 standard industry protocols. OR using SXCar software available for free download using SCS interface/cable/laptop . OR unlocked SCS using SXTune software with free download using interface/cable/laptop.

OMEX ECU either Euro 3 or Euro 4 does NOT work with OBD2 Scan Tools , Euro 4 has OBD connector but may only work with OMEX software and interface/cable/laptop.

Click to expand...

Tony,
Who needs standardization? Vastly over rated.
Appears Norton's philosophy was, constituency is the hobgoblin of small minds.
I wish they had retained positive ground as well.

The bottom line at this time is if you have a SCS ECU it will work with the OBD2 scan tool using the OBD2 connector. Also , easy access to the SCS Delta people in UK for advice and free downloads to their software .

I had a number of conversations with Norton about the lack of a working OBDII connector. As my bike originally started life with an SCS ECU it had a functioning OBDII socket. When Norton replaced it with the OMEX ECU it stopped working. Further research from my end revealed the OMEX ECU was never intended for road use so had no OBDII functionality.

At one point I was offered the OMEX maps and software, but as I ended up switching back to a programmable version of the SCS ECU, I never played with it to the point of loading different maps. But given old Norton is gone....

The link at the bottom of this post contains the following.

• Norton technical service bulletin on how to install OMEX ECU software and maps
• OMEX Map 4000 ECU software
• In the map folder Norton engine maps and other files necessary for loading maps

You will need a USB to RS-232 cable, these are commonly available at computer component stores (this takes the place of the OMEX cable and software mentioned in the TSB). The software is quite useful for displaying a range of engine parameters. It may be possible for someone to develop their own suitable map from scratch if the password to unlock the OMEX maps is never revealed. I'm sure I asked OMEX directly at one point if they could supply a base map but can't find any evidence of a reply.

I don't know if it will work on EURO IV bikes.

TerryW said:

Just like to chirp in please. Bike MOTs do not include emissions checks (yet). Lambda sensors enable the ecu to weaken the mixture. In other words reduce the amount of exhaust gas produced at the cost of a hotter engine and poor power delivery. The Norton ecu mappings are ridiculously bad compare to say Triumph mappings.
I fitted a pair of so called “o2 sensor eliminators” onmy 2018 961 sport in order to remove the lambda/o2 sensors completely and allow the engine to run cooler and smoother between 2700 and 3200 rpm. This was a complete success. No lambda sensor issues for me. Never seen the MIL come on. Hope this helps.

Click to expand...

Hi Terry. Could i ask where you got you Norton Commando O2 Oxygen Sensor Eliminator Plugs please.

Get them on ebay, this is where I got mine : wheelzconnectors

TonyA said:

Get them on ebay, this is where I got mine : wheelzconnectors

Click to expand...

Thnaks.