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Old 04-09-2014, 09:40 AM   #1
Smarties OP
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Location: Rosh Pinah , Namibia
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KTM 690 Map sensor problem

Hi Guys, I`m new to this forum. Hope I`m at the right place now.
I have a 2008 KTM 690. It smell like it over feuling when I start it.
Its always a struggle to start it. When it start it runs 100% no problems.
I had it on a computer diagnostic, according to the computer its either the MAP sensor or a short on the MAP sensor wiring.
My brother has exactly the same bike, so i switched the sensors. No difference to any of the 2 bikes.
So its probably a short on the wiring. Have anybody had this problem or can anyone give me some advice please.....
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Old 04-09-2014, 10:48 AM   #2
StepOnIt
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Tps

Quote:
Originally Posted by Smarties View Post
Hi Guys, I`m new to this forum. Hope I`m at the right place now.
I have a 2008 KTM 690. It smell like it over feuling when I start it.
Its always a struggle to start it. When it start it runs 100% no problems.
I had it on a computer diagnostic, according to the computer its either the MAP sensor or a short on the MAP sensor wiring.
My brother has exactly the same bike, so i switched the sensors. No difference to any of the 2 bikes.
So its probably a short on the wiring. Have anybody had this problem or can anyone give me some advice please.....
Not sure but might be a TPS on the throttle body, throttle position sensor. It could be out if wack for the start up and still be ok for running. They can get messed up if you use a pressure washer on them. Also have you done anything different to the bike. Might need a 15 min idle reset?
But that's my 2cents
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Old 04-09-2014, 10:56 AM   #3
Smarties OP
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I`ve done the 15 min idle.
I at first thought it might bet the TPS, but according to the diagnostic its the MAP sensor or map sensor wiring.

Now I`m not sure. How could one test it? I`m new to these bikes, all I know is KTM 300`s

You can smell the petrol when starting the bike, so its deffinatelly over feuling.

Would it work if I swop the complete throttle body with my brother`s , its the same bikes ( year model)
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Old 04-09-2014, 11:07 AM   #4
Bill the Bong
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If I recall correctly, most of the map sensor issues were actually traced to poor earthing at the common earth. However, broken/chafed through wires are common enough. Do you smell fuel at the exhaust end or at the injector?

Moenie vrees nie...
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Old 04-09-2014, 11:12 AM   #5
Smarties OP
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Quote:
Originally Posted by Bill the Bong View Post
If I recall correctly, most of the map sensor issues were actually traced to poor earthing at the common earth. However, broken/chafed through wires are common enough. Do you smell fuel at the exhaust end or at the injector?

Moenie vrees nie...

At the exhaust end, I think. have you seen this problems.

Where is the common earthing piont?

Sorry for all the questions, I have no experience with these bikes.
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Old 04-10-2014, 05:49 AM   #6
StepOnIt
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Mapping

Can you or do you have acess to the ecu cable? Might be a mapping problem and I found that adding a new map worked wonders with my bike. Now I did not have the same problems as you are but it made a huge difference to mine. The software and maps are free just need a cable and a PC. If you do do it turn your bike on and make sure your kill switch is not on, trial and error on my part.
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Old 04-10-2014, 10:55 AM   #7
Smarties OP
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There is no FI light flashing.

Would I be able to see if its the TPS if I swop the complete Throttle body with another bike`s.
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Old 04-10-2014, 03:18 PM   #8
Mudguts
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One thing that is over looked is cleaning the map sensor as the crank case breather is routed into the the ain't box a super fine mist of oil can coate the sensor giving a bad reading , I clean mine with an aerosol MAP /MAF throttle body cleaner


Just my 2c
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