Rough running and engine management light on - Triumph Forum: Triumph Rat Motorcycle Forums
Tiger's 885i & 955i - Mods & Workshop Workshop and technical talk for the 885i & 955i Tigers

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post #1 of 15 (permalink) Old 04-12-2019, 09:55 AM Thread Starter
Minitwins
Main Motorcycle: Triumph Tiger 955i
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Rough running and engine management light on

Hello,

My 955 has 30.000 miles, well looked after and ran like a dream. Yesterday I noticed the white smoke at start up seemed to go on for longer even after the bike had warmed up. Went for a ride and the bike run well except the throttle response seemed a bit 'snatchy'. The engine management light come on and the bike started to run like a tractor. The engine kept missing and I had to keep revving to stop the engine from dying. I carried on like this for 5 miles to get back home (I know you should have pulled over).

Started the bike this morning. Started easily but run rough for a bit and then cut out. Oil and water are good (for level and contamination). Battery is good and charges at 14.5V (has the wiring mod).

Any ideas as to the cause would be appreciated. I have read about MAP tubes being a common culprit (but don't know where these are or what they look like) ?????

Thanks.
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post #2 of 15 (permalink) Old 04-12-2019, 11:12 AM
World SuperBike
Main Motorcycle: 2006 Tiger '955
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Hi mate,

My immediate response would be to put it on TuneECU and read any fault codes, but that's when you come back with....."I haven't got TuneECU" ??

Safe riding.
Regards,
Graeme.
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post #3 of 15 (permalink) Old 04-12-2019, 12:49 PM Thread Starter
Minitwins
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Thanks for the reply Tiger-G. Your reply is spot on

I've heard of TuneECU but always stopped when reading the bit about "..... this can destroy your engine etc etc ". Could you tell me what I need i.e what cable to buy and where you would download the software. Many thanks.
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post #4 of 15 (permalink) Old 04-12-2019, 03:33 PM
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You could also try Dealertool. I think mine cost 75 quid or so and it comes with everything you need
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post #5 of 15 (permalink) Old 04-13-2019, 01:44 AM Thread Starter
Minitwins
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Thanks for the reply lobout. I'll look into the TuneECU option for now as it will cost about a tenner (assuming the cables off Ebay are OK??). Does anybody know what these MAP tubes are ? Ta.

Also, would this be suitable for a 2005 955i;

https://www.ebay.co.uk/itm/TUNE-ECU-...frcectupt=true

or would this work if I just wanted to know what the error code is?

https://www.ebay.co.uk/itm/Car-Fault...frcectupt=true

Many thanks

Last edited by dogday; 04-13-2019 at 03:05 AM. Reason: Updated info required
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post #6 of 15 (permalink) Old 04-13-2019, 05:39 AM
World SuperBike
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TuneECU is cheap as chips, as you're just paying for a cable. The software and maps are free, and it is brilliant for fault codes and installing new maps. I would go with that. I was scared stiff the first time I used it and remapped the bike, but after you're used it once, it's easy going

As for the MAP tubes ?? All I can think of is the IACV hoses ?? These are attached to the Idle Air Control Valve which is on top of the throttle bodies. They are plastic corrugated hoses and prone to cracks and leaks. They are soooo easy to replace, but are expensive if you go for Triumph originals. Many people improvise with silicone hose.


Edit: The link to the TuneECU cable looks ok to me. If their feedback is good....go for it !!
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Safe riding.
Regards,
Graeme.
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post #7 of 15 (permalink) Old 04-13-2019, 06:15 AM Thread Starter
Minitwins
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Thanks for all the info Tiger-G. Looks like TuneECU is the way to go. Once I get an error code is it just a google search of the code or is there some specific Triumph list of error codes that I need from somewhere ??

Thanks.
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post #8 of 15 (permalink) Old 04-13-2019, 10:55 AM
World SuperBike
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Quote:
Originally Posted by dogday View Post
Thanks for all the info Tiger-G. Looks like TuneECU is the way to go. Once I get an error code is it just a google search of the code or is there some specific Triumph list of error codes that I need from somewhere ??

Thanks.
TuneECU should provide the code and fault. If not, we'll sort you out on here

Good luck

Safe riding.
Regards,
Graeme.
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post #9 of 15 (permalink) Old 04-13-2019, 12:16 PM Thread Starter
Minitwins
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Quote:
Originally Posted by Tiger-G View Post
TuneECU should provide the code and fault. If not, we'll sort you out on here

Good luck
Many thanks Tiger-G. I've got the USB lead on order and will let you know how I get on..... and maybe ask for more advice if it doesn't go quite to plan or hopefully
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post #10 of 15 (permalink) Old 04-16-2019, 10:28 AM Thread Starter
Minitwins
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Problem solved

Bought the cable of ebay for 12.50. Installed TuneECU and drivers. Plugged in and......

P0352 - Ignition coil 2 circuit malfunction.
P1352 - Ignition coil 2 open circuit or short circuit to ground.
P0462 - Fuel level sensor circuit low input.

So it looks like a new ignition coil. Part number T1290006 if that is correct ????

Or could it be a break in the wire to the coil ???? I took a look but nothing obvious ?

Not sure about the fuel fault. There's half a tank of petrol and there's an intermittent fault to the fuel guage after hitting a large bump in the road.

Many thanks for your help Tiger-G. This has saved a lot of time and cost in trial and error fault finding !!!!
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