UK Buell Enthusiasts Group
https://www.ukbeg.com/forum/

09 XBS starting issue ?
https://www.ukbeg.com/forum/viewtopic.php?f=7&t=25140		 Page 1 of 1
Author:  Nutah [ 18 May 2022 16:45 ]
Post subject:  09 XBS starting issue ?
got a call from a friend , so I dropped around

history of bike is...
initially seemed like a TPS issue as it was iratic at certain throttle points
he put it away for a while , then the battery died so he renewed that
BUT
owner said he renewed the battery, but with an optimate connected to save loosing the ecm ?
I was wondering if it could have spiked the ECM ?

TPS as per 08 onwards has been done
plugged ecm spy into it & no fault codes are showing at all ?

it wont start , with a fully charged battery
ignition switch on pump cycles , but then it coughs as the starter is turning over

the injectors have been cleaned as they were not spraying correctly & now spray mist correctly

I was thinking if someone has a spare ECM to try swapping it over ?
cant see any loom damage at the headstock area
Author:  barney [ 19 May 2022 07:45 ]
Post subject:  Re: 09 XBS starting issue ?
how old is the fuel ? this modern stuff don't like to sit around for to long before it starts going off, and cloging up the works, filters , injectors , pumps . a pressure gauge to check its reaching correct pressure would be nice to know that fuel system is ok , and a fresh tank of fuel woudn't go a miss.
with the " it was iratic at certain throttle points " before being " put it away for a while" did it fouled the plugs and needs a plug change , and once it does start, you still need to find out what the original cause of the "iratic at certain throttle points" .
Author:  Nutah [ 19 May 2022 10:56 ]
Post subject:  Re: 09 XBS starting issue ?
Cheers Barney
Sorry I should have said
Has had new plugs & fresh fuel pressure is good
I was thinking if the TPS sensor may be defective as it will run if you catch it with some throttle but cuts out if left
Author:  Jazzbutcher [ 19 May 2022 14:29 ]
Post subject:  Re: 09 XBS starting issue ?
Sounds like you're on the right track to me Don.
If everything else seems ok & it sounds like it is, it has to be one of the sensors. Plus your initial idea/thought that it may be the ECU, would also point me to the sensors before the ECU.
Good luck & well done so far.
Author:  barney [ 19 May 2022 17:57 ]
Post subject:  Re: 09 XBS starting issue ?
Nutah wrote:
Cheers Barney
Sorry I should have said
Has had new plugs & fresh fuel pressure is good
I was thinking if the TPS sensor may be defective as it will run if you catch it with some throttle but cuts out if left

:yt: or could be air leak ....manifold , or not sure if the 9 is same as 12 with blanking plug around throttle body area .
Author:  Nutah [ 20 May 2022 21:40 ]
Post subject:  Re: 09 XBS starting issue ?
forgot to say it's a 1203cc :oooops:
Author:  pash [ 21 May 2022 06:15 ]
Post subject:  Re: 09 XBS starting issue ?
What’s the fuel pressure?
Are the injectors connectors on the correct injector?
Did he replace the TPS?

I very much doubt it is the ECM.
Author:  barney [ 21 May 2022 06:56 ]
Post subject:  Re: 09 XBS starting issue ?
Nutah Hopefully get it up and running soon with the help of Dr Pash :worthy: :yup:
Author:  Nutah [ 05 Aug 2022 19:41 ]
Post subject:  Re: 09 XBS starting issue ?
...continued

fuel pressure is 43.5 edited.. it's supposed to be 49/50psi

tps reset done as it's an 09 , but no different sadly

have suggested a trip to see Maz :yup:
Author:  barney [ 06 Aug 2022 07:03 ]
Post subject:  Re: 09 XBS starting issue ?
:yup: :maz: :worthy: :worthy:
Author:  ozymandias [ 26 Nov 2022 15:00 ]
Post subject:  Re: 09 XBS starting issue ?
Hi, Did you resolve the TPS issue - I am having similar issues that point to the TPS. If you replaced the TPS where did you get one from and have you part number/manufacturer details
Author:  Maz [ 26 Nov 2022 15:11 ]
Post subject:  Re: 09 XBS starting issue ?
You're on my doorstep ! :idea:
Author:  Nutah [ 26 Nov 2022 20:19 ]
Post subject:  Re: 09 XBS starting issue ?
:yt: :askmaz:
Page 1 of 1 All times are UTC
Powered by phpBB® Forum Software © phpBB Limited
https://www.phpbb.com/