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'05 Fatboy MAP sensor diagnosis

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Old Jan 6, 2009 | 03:43 PM
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Default '05 Fatboy MAP sensor diagnosis

This is a carbed bike. Anyone know how to properly diagnose a faulty MAP sensor ??
 
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Old Jan 6, 2009 | 09:17 PM
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Take it to a reputable Harley Shop, preferably not the local stealer. CORRECT ME IF IM WRONG, re-mapping is for FUEL INJECTED bikes. Carbed is done through re-jetting, main and pilot jets. Other fine tuning done through ignition module, ex. timing and rpm limits.
 

Last edited by hpfatboy; Jan 6, 2009 at 09:21 PM.
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Old Jan 6, 2009 | 10:02 PM
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Think John is talking about a, "Manifold Absolute Pressure", sensor.
But like you I don't know how that works with a carbed engine.
 
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Old Jan 7, 2009 | 06:19 AM
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That's it.
 
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Old Jan 7, 2009 | 06:27 AM
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think i read that the m.a.p. sensor on carbed bike is used to advance/retard timing..check it? ....you could remove it apply vacume with a volt meter attached and see it if there is a response
 
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Old Jan 7, 2009 | 09:01 AM
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Why do you think you have a MAP sensor issue?
 
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Old Jan 7, 2009 | 09:33 AM
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Bike (especially when cold) seems as if timimg is retarded.
 
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Old Jan 7, 2009 | 12:35 PM
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straight from service manual
http://i159.photobucket.com/albums/t.../mapsensor.jpg
 
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