Engine Management Warning Light

Pete

Life's a Beach
Joined
Dec 4, 2013
Messages
498
Location
Brisbane Qld
Ride
2011 Roadster
I returned home from a short ride on Sunday and sat at idle for about 2 minutes while I was on board before the engine started missing and sounded like it was firing on two pots. I slipped it into first and rode for about 50 metres before the third pot came back on line. Since then the engine management warning light has been on. The engine runs and idles ok, I haven't been for a ride since but I ran the 12 minute tune to see if that might fix it without any luck.

Can anyone offer some ideas on how to check this?
Not sure whether I should ride with this light on.

A couple of weeks ago I went for a ride after washing the bike and the engine was missing under load but that eventually cleared up and I put it down to wet plug leads. The engine management light didn't come so I don't think its related but I thought it worth the mention.
 
You can check what the Engine Light is for with TuneECU. It will give you a code, which you can then check against the manual. You can also reset any engine error codes with TuneECU. If it doesn't come on again then all is well.

Alternatively, error codes will reset after a certain number of engine on/off cycles, as long as the problem is no longer there.

As a matter of course, witha problem like that, I would check to make sure that the coil leads - especially the low tension ones - are clean and tight. You may have to crimp them. The front coil of the three is a PITA to get to.
 
read the codes the computer might tell you which cylinder it is.
 
If your do not have the software you can always go to a auto parts store and have them read the code for you. I am not sure if they could clear them but it could point you in the right direction. Once you correct the problem the engine light on some of the problems will go out after so many cycles as Ian stated above.
Also I would take a look at the coil leads Low tension as Ian stated start with the two easy ones hopefully they are the culprit. Picture below shows the two low tension leads on the number 2 coil. Brown and Green. The number three coil is right behind it. Number 1 is up front under the heck and suck to get at. If you do look at leaving the plate off the top of it as it is there just to anchor harness connectors. This will really suck if you have the original intake plumbing so start with number 2 & 3 first.

 


Thanks IDK, I'll look at the coil leads
 

Thanks warp9.9, will do.
 
Gday

Recently my front coil wires came lose causing the bike to misfire and run on two cylinders, didn't seem to show up on Tune ECU as a fault, but was easy fix by compressing the terminals slightly. No fault light either.

Also new a guy who got bought a S/H Ducati (each to their own I suppose) from a shop and went straight on a rally with us ran like a bag of sh*t and we eventually stopped when I noticed the rear exhaust pipe was glowing red hot. Called dealer they sent someone out (good on them) turned out was water down the holes where the spark plugs go causing intermittent shorting,but go for the coil wires first when I checked all of mine seemed to be quite lose.

Get Tune ECU makes diagnostic so easy.
 

Thanks Sleeves
Had a 900 duke years ago, they're my favourite V twin.
 

You were on the money Sleeves.
One of the front coil wire spade connections had come loose and was only just touching the coil terminal.
I think that slight movement in the loom when the bars were turned may have worked on the coil wire connection.
I could see that the loom had been moved and was not in the best position to reduce movement.
I installed a cable tie to hold the coil wires and repositioned the loom.
The lights gone out and all is sweet again.

My tunecu cable however has been ordered and is on the way
 
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