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Wrong throttle body?

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Old Sep 24, 2022 | 11:48 PM
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Default Wrong throttle body?

Today I tore apart a 2013 883 Iron and found something really odd. The throttle body has what appears to be a MAF or MAP sensor in it. According to the manual, there should be nothing here, but it's there so is this an aftermarket or what's going on? The intake manifold also has a TMAP sensor where it should be. I am a bit confused as the wire loom has a plug for it, any help would be appreciated.

Circled part is in question.

Manual doesn't show it.
 
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Old Sep 25, 2022 | 02:45 AM
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It is a mystery for sure. I have a 2017 bike and it is not present. No sign of it in the FSM.
 
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Old Sep 25, 2022 | 07:23 AM
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The stock HD Throttle body didn't have the TMAP mounted to it, it attached to the intake manifold.

2013 Sportster Service: Fuel System 4-37



SE 58mm throttle body for XL models?
HD had this in 2015.

HPI made a 51mm Sportster throttle body.

More info (no pictures)
XL THROTTLE BODY TESTS
 
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Old Sep 25, 2022 | 07:42 AM
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What color are the wires in that plug? Y/GN (pin 1) & GY/Y (pin 2) would be for AIS on exported (HDI) XR models.
 
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Old Sep 25, 2022 | 11:25 PM
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I found out it's an IAT sensor (intake air temp) but I'm not sure why it is there, I have never seen one on the throttle body, only on the air breather.
 
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