Engine Management Light

Discussion in 'Bonneville' started by David Aldworth, Oct 21, 2022.

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  1. David Aldworth

    May 23, 2022
    10
    8
    United Kingdom
    Hello people

    Twice now my engine management light has come on whilst on a sustained period of time on the motorway. I don’t go above 80 as you get blown everywhere.ha. 70-80 mph. I was driving from Bristol to Taunton so not that long on a motorway, 5 junctions. Both times the engine management light came on Whilst on the motorway. After a couple of heat cycles it’s gone away. Has this happened to anyone else? The performance doesn’t change, it was fully serviced at the beginning of august. Are they just not made for constant motorway riding?
     
  2. nnervous

    nnervous New Member

    Sep 2, 2022
    0
    1
    Central NY
    Have you checked to see if there is a fault code in your system?

    Checking fault codes:
    • Hold “I” button and turn ignition switch to ON.
    • Release I button when “DTC” appears on the left window.
    • Read the code. It'll be a P followed by four digits.
    • P0000 is no codes
     
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  3. KC1961

    KC1961 Member

    Nov 13, 2014
    60
    18
    West Lothian
    If it's still on when you arrive home you should connect an OBD reader to the connector under the seat and see what fault code it shows.
     
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  4. David Aldworth

    May 23, 2022
    10
    8
    United Kingdom
    Thankyou kindly sir it has gone off now but I was just curious if it happens to anyone else whilst motorway riding, constant speed and all that. Do you have an OBD reader? If so any recommendations?
     
  5. KC1961

    KC1961 Member

    Nov 13, 2014
    60
    18
    West Lothian
    I don't. I've borrowed one each time (twice) my engine management light came on.
     
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  6. Sir Trev

    Sir Trev Senior Member

    May 27, 2017
    661
    193
    Buckinghamshire
    I did a long weekend trip on my '17 T100 in the mid August heatwave, including most of the M40 at a steady 70. My feet (being so close to the engine cases) cooked so I know the bike got stinking hot, but no sign of the management light at all.

    Hope your bike is OK.
     
  7. Johnjo

    Johnjo Senior Member

    May 29, 2017
    545
    243
    Birmingham

    Sorry David, but I can't help with diagnosing why your EML is tripping. But I can recommend an OBD2 reader.

    I needed to buy one recently when I tripped the EML on my Tracer 9gt by running the engine on the centre stand. Apparently the ABS module can't handle that and threw a fault code.

    I bought a THINKOBD500 reader and a 6 pin adaptor to connect it to the bike. Reader was about £26 and £9 for the cable. The reader instructions were found lacking but there are plenty of useful guides on youtube to be found.
     
  8. David Aldworth

    May 23, 2022
    10
    8
    United Kingdom
    Thankyou ever so much for your advice. I looked for the reader you had but is there one just for motorcycles? I am probably being dumb.lol
     
  9. nnervous

    nnervous New Member

    Sep 2, 2022
    0
    1
    Central NY
    Not to be a smart a** but why not try the built in option first just to see if you even have a code?

    Checking fault codes:
    • Hold “I” button and turn ignition switch to ON.
    • Release "I" button when “DTC” appears on the left window.
    • Read the code. It'll be a P followed by four digits.
    • P0000 is no codes
     
  10. Markus

    Markus Crème de la Crème
    Subscriber

    Oct 28, 2020
    3,138
    1,000
    AUSTRIA
    @David Aldworth: I also can not help you with the diagnostics. When riding with our two T120 my with and I had never such problems. In May this year we did a 600 km long-run on the motorway to Italy without any issues. I did once a 1.000 km tour in two days on different kind of streets also with no issues. I can't imagine that riding on motorways could lead to this "problem".
     
  11. Johnjo

    Johnjo Senior Member

    May 29, 2017
    545
    243
    Birmingham
    There are dedicated motorcycle scanners/readers but they are really expensive. More for motorcycle workshops, etc, I think.

    I thought I'd take a punt on a cheaper generic reader and so bought the THINKCAR model. Happily it worked for me..

    By the way mate, you're not being dumb, just rightly cautious being on new ground.
     
  12. NatM

    NatM New Member

    Feb 25, 2021
    8
    3
    Bushmills
    I use an OBDLINK LX Bluetooth connection and Tuneecu app on my phone. Mainly used to balance throttles and reset service light.
     
  13. Mini

    Mini Member

    Jun 28, 2022
    52
    18
    Australia
    Hi guys, just reading the posts on a reader for engine management for your bonnie, try this it's the only one that works properly. :)

    41g1SENmxML._AC_SY580_.jpg
     
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  14. Eldon

    Eldon Elite Member

    Nov 14, 2018
    4,499
    800
    North Yorkshire
    That's the one I have and it works well on an 2018 765 rs.
    You can read codes, balance throttle bodies etc.
    Paid £90 for it UK.
     
  15. Mini

    Mini Member

    Jun 28, 2022
    52
    18
    Australia
    I use my LX reader on a 2004 st, 2010 speed triple and a 97 and 99 daytona, there's also a MX model but has features that we don't (can't) use on motorcycles, worth there weight in gold, it's paid for itself many times over not having to go to a dealership for problems and service aspects. Good luck with your engine light coming on, doesn't sound too bad if after 3 cycles it cancels, had a similar problem with the st when I filled up with fuel right to the top, these things are sent to try us !!!!!
     
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  16. beerkat

    beerkat Senior Member

    Aug 14, 2019
    850
    243
    Cheshire UK
    The EM warning light has come on several times on my 2017 Street Twin. The first time was on the way home following a service at my Triumph dealer. I took it straight back. They checked it but found nothing wrong (and switched it off). It happened again about a year (2020) later while I was on the 2000+ mile Malle Rally. I didn't want to leave the rally so took the risk and carried on. It went off after a couple of hundred miles. On the last day of the 6 day rally it came on again and coincided with the fuel light, so I had 2 warning lights glowing at me! Again it went off after another few hundred miles. I took it to my dealer who checked it again but still couldn't find a fault.

    It has probably happened a couple more times since then. The bike is regularly serviced and there are no unusual noises or power loss. I've sort of grown to live with it.

    Incidentally, I've owned cars that have had the EM light flick on but no fault has been found.
     
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  17. brown mouse

    brown mouse Elite Member

    Sep 15, 2018
    2,288
    943
    East Midlands, UK
    I carry the OBDLink LX (mentioned above) in my small toolkit. So if I ever got a warning light I can check and reset codes on the road. (I have TuneECU on my phone, but I assume that the OBDLink app would also show codes and allow clearing too).
     
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  18. Pegscraper

    Pegscraper Elite Member

    Jun 12, 2020
    3,085
    800
    Yorkshire
    No one has mentioned Dealertool which can read/reset codes and more, similar to Tune ECU I should imagine although I have no experience of that.
     
  19. David Aldworth

    May 23, 2022
    10
    8
    United Kingdom
    Do you have to have that plugged into your bike and a laptop simultaneously? I don’t have a laptop if that’s the case.ha.
     
  20. Eldon

    Eldon Elite Member

    Nov 14, 2018
    4,499
    800
    North Yorkshire
    @David Aldworth
    Plug that in under the seat.
    Open app on smartphone, mines a Samsung S20 on Android.

    Do what you need to do once it's paired.

    ;)
     
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