RC8R - 2nd Throttle Error

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Two wheeled terror
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RC8R - 2nd Throttle Error

Postby SuperHoon » Wed Dec 25, 2013 12:08 am

hey lads,

just picked up a '10 RC8R because i couldn't keep waiting for the 1290R.


dead stock, just a 41t rear sprocket for better wheelies. done 2400kms.

anyways, got an EFI error which was p0638 2nd throttle malfunction. i cleared the code and it came straight back.

Where should i start looking? can you just turn the 2nd throttles to 100% like on the SD and it will still be sweet?


2015 KTM 1290 Super Duke R
2010 KTM RC8R

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Two wheeled terror
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Re: RC8R - 2nd Throttle Error

Postby Vortex155 » Tue Feb 11, 2014 3:57 pm

Thats a malfunction of the throttle valve stepper. U bought it second hand could be the former owner has fiddled with the 2nd butterflies??
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