MIL (Check Engine light), fuel smell - Ducati Supersport 939 Forum
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post #1 of 6 (permalink) Old 08-13-2017, 03:58 PM Thread Starter
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MIL (Check Engine light), fuel smell

Check engine light came on today a minute after startup. Fuelled up last night, to the reccommended line, and came right home and parked (about 2 miles). Left it outside, and in the sun this morning everything was pretty warm, I noticed a fuel smell from the bike before starting. Started, let idle for a minute then as sometimes happens as I go to pull away quietly (kids napping) I stalled it. Not uncommon, clutch is VERY grabby when below operating temp. Fired it up again, and at the first stop sign the Check Engine light came on. I have not received my 4-pin to 16-pin OBD cable yet, but is there anywhere on the dash I can get it to output what the code is? Anyone else suspecting evap system? Anyone REMOVED their EVAP canister yet?

-C
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post #2 of 6 (permalink) Old 08-13-2017, 04:51 PM
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The fuel volume expands 5% but the mass remains the same. For example a temperature change from 5C to 25C will increase the volume so it will then pour out of the breather pipe at the bottom of the fairing.
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post #3 of 6 (permalink) Old 08-13-2017, 04:56 PM
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Originally Posted by misterclean View Post
Check engine light came on today a minute after startup. Fuelled up last night, to the reccommended line, and came right home and parked (about 2 miles). Left it outside, and in the sun this morning everything was pretty warm, I noticed a fuel smell from the bike before starting. Started, let idle for a minute then as sometimes happens as I go to pull away quietly (kids napping) I stalled it. Not uncommon, clutch is VERY grabby when below operating temp. Fired it up again, and at the first stop sign the Check Engine light came on. I have not received my 4-pin to 16-pin OBD cable yet, but is there anywhere on the dash I can get it to output what the code is? Anyone else suspecting evap system? Anyone REMOVED their EVAP canister yet?

-C
check the manual, I recall reading somewhere about error codes I just cannot remember where and it may have been in a separate instruction issued by Ducati when procuring add ons. .
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post #4 of 6 (permalink) Old 08-13-2017, 05:23 PM Thread Starter
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Had a good look through the manual, nothing about reading error codes. Seems to be running OK, I feel like the stupid charcoal canister might be clogged. I've had the bike a month and have put, as of today, 4000km on it. I ride it pretty much every day, and it's honestly had more than one fuel fillup where I wasn't paying attention and it was probably too high. I'm getting an urge to remove the charcoal canister altogether, just have to see a proper vacuum diagram to sort out how to do it the right way. Love having California and Euro emissions nonsense crammed down our throats here in Canada... not...

Any advice on that one? Also, how's your remapping project coming? I'm looking at having a cat elimination pipe tig'd up at my old aerospace shop, they have tons of scrap Inconel sheeting and one of the welders that deals with that stuff is an old friend, told me he'd do one if I got measurements. I'm looking to get it all apart this winter when riding season is over. My dealer is pretty good about most things and says they may be able to do the GP exhaust flash if I remove the cat. They say they won't void my warranty for exhaust mods, etc, either. They've been pretty good to me, they were my Triumph and Yamaha dealer as well, so it's a good relationship. If you've successfully mapped it I'd be interested in buying the map and whatever hardware/software was needed to do it.
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post #5 of 6 (permalink) Old 08-13-2017, 05:34 PM
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Had a good look through the manual, nothing about reading error codes. Seems to be running OK, I feel like the stupid charcoal canister might be clogged. I've had the bike a month and have put, as of today, 4000km on it. I ride it pretty much every day, and it's honestly had more than one fuel fillup where I wasn't paying attention and it was probably too high. I'm getting an urge to remove the charcoal canister altogether, just have to see a proper vacuum diagram to sort out how to do it the right way. Love having California and Euro emissions nonsense crammed down our throats here in Canada... not...

Any advice on that one? Also, how's your remapping project coming? I'm looking at having a cat elimination pipe tig'd up at my old aerospace shop, they have tons of scrap Inconel sheeting and one of the welders that deals with that stuff is an old friend, told me he'd do one if I got measurements. I'm looking to get it all apart this winter when riding season is over. My dealer is pretty good about most things and says they may be able to do the GP exhaust flash if I remove the cat. They say they won't void my warranty for exhaust mods, etc, either. They've been pretty good to me, they were my Triumph and Yamaha dealer as well, so it's a good relationship. If you've successfully mapped it I'd be interested in buying the map and whatever hardware/software was needed to do it.
The maps for both cylinders are with Dimsport now. Not sure if they have included it in the download yet. At top end revs there is 10hp and 9nm but at middle revs there is 11nm and 9hp. Still struggling with the 1hp and 1nm dip at 6000 rpm. Got a dyno booked in this next week. Rode it at lower altitude the other weekend and it went very well, spent most time in 3rd and 4th holding the revs up and it really felt good. Try rapid bike USA for the Rapid bike EVO module.
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post #6 of 6 (permalink) Old 08-13-2017, 05:40 PM
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Quote:
Originally Posted by misterclean View Post
Had a good look through the manual, nothing about reading error codes. Seems to be running OK, I feel like the stupid charcoal canister might be clogged. I've had the bike a month and have put, as of today, 4000km on it. I ride it pretty much every day, and it's honestly had more than one fuel fillup where I wasn't paying attention and it was probably too high. I'm getting an urge to remove the charcoal canister altogether, just have to see a proper vacuum diagram to sort out how to do it the right way. Love having California and Euro emissions nonsense crammed down our throats here in Canada... not...

Any advice on that one? Also, how's your remapping project coming? I'm looking at having a cat elimination pipe tig'd up at my old aerospace shop, they have tons of scrap Inconel sheeting and one of the welders that deals with that stuff is an old friend, told me he'd do one if I got measurements. I'm looking to get it all apart this winter when riding season is over. My dealer is pretty good about most things and says they may be able to do the GP exhaust flash if I remove the cat. They say they won't void my warranty for exhaust mods, etc, either. They've been pretty good to me, they were my Triumph and Yamaha dealer as well, so it's a good relationship. If you've successfully mapped it I'd be interested in buying the map and whatever hardware/software was needed to do it.
The maps for both cylinders are with Dimsport now. Not sure if they have included it in the download yet. At top end revs there is 10hp and 9nm but at middle revs there is 11nm and 9hp. Still struggling with the 1hp and 1nm dip at 6000 rpm. Got a dyno booked in this next week. Rode it at lower altitude the other weekend and it went very well, spent most time in 3rd and 4th holding the revs up and it really felt good. Try rapid bike USA for the Rapid bike EVO module.
I think if you get the dimensions for the exhaust then you could make a fair change to the bikes performance. I feel the same as you that we have to live with EU regulations or perhaps I am just not good with authorities.
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