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Offline tomsvk

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800XC power loss
« on: June 12, 2018, 08:15:46 AM »
Hi Guys
First I want to apologize for my english...it s not my native language.
I ve been working on my friends Tiger 800XC 2011. He had total engine damage and had to change engine. Throttle bodies, injectors and all sensors are original. There is chance that engine was not XC but tiger 800 (die cast wheels). Everything fits and engine runs. Problems come when rpm go higher - then some strange stalling comes. We synced throttle, changed map to last and disabledt O2 sensor using Tuneecu - no change. We also see that mixture is too rich and bike info says fules consumption is high..
Here is screenshot of Tuneecu Diagnostic. Any ideas?

Offline KildareMan

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Re: 800XC power loss
« Reply #1 on: June 12, 2018, 08:39:20 AM »
1st off welcome.

Makes no difference if engine is not XC as they are the same.

Are you running an arrow tune?

Lastly at 103 degrees the fan should be on - was it running?
Stupid is as stupid does.
IRL via GB & CL

Offline tomsvk

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Re: 800XC power loss
« Reply #2 on: June 12, 2018, 08:44:09 AM »
Thanks for reply. Screen was after upload and adaptation - that s why there is 103 degrees... And fan was on. Tune is standard map 21062 and before there was 20770.

Offline CSAW

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Re: 800XC power loss
« Reply #3 on: June 12, 2018, 12:39:41 PM »
Rag sucked into airbox?

Offline tomsvk

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Re: 800XC power loss
« Reply #4 on: June 17, 2018, 03:02:20 PM »
So we have made little research... airbox is clean. we have used diferent airfilter, but that made almost no change. but what was strange for me is that TPS sensor in TUNE ECU was on 5% but prm round 4000...is that OK?   We did reset adaptation, but that resets TPS in idle only....how to calibrate it ?

Offline tomsvk

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Re: 800XC power loss
« Reply #5 on: September 18, 2018, 08:37:13 PM »
Hi Guys
So we have spent some time with broken bike. We know that mixture is too lean.  Cayn we somehow find out what year is engine by it s number? Old engine number was B432548 and new engine number is B639101.

Offline KildareMan

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Re: 800XC power loss
« Reply #6 on: September 18, 2018, 08:47:05 PM »
Email triumph. The factory is usually helpful
Stupid is as stupid does.
IRL via GB & CL

Offline chuckxc

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Re: 800XC power loss
« Reply #7 on: September 18, 2018, 10:34:36 PM »
Might be your TPS sensor may not be calibrated and so it is telling the fuel map the wrong position. There is a procedure to set the TPS voltage at the closed throttle position. It is done by releasing 2 screws and  rotating  the TPS unit  until a voltage of 0.6 V +/_ 0.02 V is set. It is easiest to use tuneecu to do this by reading TPS voltage or else use a voltmeter on the green/yellow wire.
I suspect your fuel map is getting the wrong info from one of the many sensors such as TPS, IAT,  cam position, MAP, O2, engine temp, etc. Try the TPS first.

Laterally unstable unless moving.

Offline tomsvk

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Re: 800XC power loss
« Reply #8 on: September 20, 2018, 02:38:55 PM »
By the picture in first post you can see that it is not so bad with TPS voltage - it s 0,68V. But it worked perfectly with previous engine.
I asked Triumph and they told me  that it is not suggested to swap engines from B432548 to B639101, but they refused to give any informations about differences in engines - we have some spares that are useable and we could change it - e.g. cam shafts...
Does any of you have tiger 800 with engine number close to B639101? If so - let me know the type and year , please.
« Last Edit: September 20, 2018, 02:40:27 PM by tomsvk »

Offline chuckxc

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Re: 800XC power loss
« Reply #9 on: September 20, 2018, 10:03:40 PM »
You wrote that you disabled the O2 sensor.
Is there a reason why you did that?
Are there any error codes in the tuneecu diagnostics?
Laterally unstable unless moving.

 


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