Forums 🚥 PIT STOP 🔧 Hyosung Technical Help reading trouble codes for GV250 EFI bikes

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    • #3958
      Hyosilver!
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      • Topics: 3
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      Mar 14, 2020
      @patwalker
      California
      Aquila GV250
      Points: 68

      Chasing down an EFI light issue I downloaded the service manual which contains a list of “C” codes. However my 2016 GV250 has analogue speedo/odo which will not show a text code. The lovely manual doesn’t tell how to access the blinking codes. I finally found out how it is done. With the key in the off position turn on the kill switch. Now turn the key on-off-on-off-on and watch the EFI light blink your code! Unfortunately my code isn’t listed in the manual. 10-5-10-5 Hope this helps someone.

    • #3959
      ♠️ MARCEL
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      @mf448kxn6
      North UK
      GTR
      Points: 4,217

      Chasing down an EFI light issue I downloaded the service manual which contains a list of “C” codes. However my 2016 GV250 has analogue speedo/odo which will not show a text code. The lovely manual doesn’t tell how to access the blinking codes. I finally found out how it is done. With the key in the off position turn on the kill switch. Now turn the key on-off-on-off-on and watch the EFI light blink your code! Unfortunately my code isn’t listed in the manual. 10-5-10-5 Hope this helps someone.

      Did the bike develop a specific issue ?

      Another shout is to check the harness near the ecu , sometimes  the fi lamp would blink if i touched the harness meaning the ecu plug wasn’t fully in, making it seem i was getting trouble but the bike still ran fine,   ofcourse  , apart from FI read outs, there is also ways to test the individual sensors all over the bike with a meter sometimes.

      // Meditation doesn't mean you have to sit still....

    • #3960
      Hyosilver!
      Member
      • Topics: 3
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      Mar 14, 2020
      @patwalker
      California
      Aquila GV250
      Points: 68

      No issue other than the light coming on every time I get to between 4 and 5 miles into a ride. I bought it with no miles on it and it has 250 miles now. Runs smooth and strong. Since the blinking code is 10-5 I think it may be a C15 which is engine temp sensor. I have one on the way and will replace it for fun. I was never good with a meter except for continuity testing.  😕

       

    • #3963
      ♠️ MARCEL
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      @mf448kxn6
      North UK
      GTR
      Points: 4,217

      0 miles ? It should have a warranty from the dealer and let them fix it since its a new bike,  within 250 miles the FI lamp light comes on?  that warrants for some attention and they should replace the parts free than you forking out already.
      I’ve had the FI light come on at 1K, but then the bike was a 2009 and stayed in a garage for many years neglected by the last owners lol.

      // Meditation doesn't mean you have to sit still....

    • #3966
      Hyosilver!
      Member
      • Topics: 3
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      @patwalker
      California
      Aquila GV250
      Points: 68

      Here in the US small shops are unloading 4 and 5 year old bikes with no miles for less than half of the price they were selling for new. I got mine for $1,995. Making matters worse is the lack of actual Hyosung dealers. The closest one to me is hundreds of miles away. There are few motorcycle mechanics here outside of dealerships where they only service their sponsored brands. The independent mechanics pretty much roll their eyes when they see a Chinese or Korean bike roll in.

    • #3988
      ♠️ MARCEL
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      @mf448kxn6
      North UK
      GTR
      Points: 4,217

      Fair play to your comments,   though i can say that if you have the books at hand and stick to its maintenance schedules and that , the bike will keep going.    Things like valve clearances can be done by even suzuki garages since it uses old style “tappet under bucket” style gixxer tappets.  The valves likely off old GSX (off the top of my head), then ofcourse manuals generally tell you what timings are.    Clutch tutorial is on this forum , as is  oil change tutorial,  those 2 you can do yourself too.

      Fueling side, ofcourse since being injected, you just make sure the tank isnt clogged with particles overtime and give injectors are nice clean through,  checking the lambda sensor is all in spec as per books. An electric pump isn’t cheap, i can attest to that!

      Brake pistons hate water but they ain’t true stainless dare i say lol. An eye on them is crucial so they don’t bind the disc later in its life,  brake pads = stick with sintered ones, over cheap organics 👍

      // Meditation doesn't mean you have to sit still....

    • #4446
      Hyosilver!
      Member
      • Topics: 3
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      Mar 14, 2020
      @patwalker
      California
      Aquila GV250
      Points: 68

      To end this thread I thought I’d add this manual. It tells how to read trouble codes on analogue instruments like my 2016 EFI GV250, Found the mystery code on mine as well. 0505. Idle speed control .

      (Edit)

    • #4452
      ♠️ MARCEL
      Administrator
      • Topics: 38
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      @mf448kxn6
      North UK
      GTR
      Points: 4,217

      The link didnt work because it was pointing to your computer hard drive so had to remove it for you.  I do have a map code somewhere i can upload myself  (i thought i did that in the 650 book section)

      // Meditation doesn't mean you have to sit still....

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