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Author Message   Stevedplumber Posted on Friday, July 29, 2011 - 05:09 pm:        shenandoah hd pulled a code 21 off my scooter. active exhaust control low/open. what can i do to correct the problem? will replacing the exhaust valve actuator fix the problem?   Froggy Posted on Friday, July 29, 2011 - 05:17 pm:        You need to either replace the actuator, or you can disable the actuator function using ECMspy.   Stevedplumber Posted on Friday, July 29, 2011 - 06:36 pm:        is replacing the actuator do-able without the need for the stealership getting involved?   Froggy Posted on Friday, July 29, 2011 - 06:47 pm:        Easy. Remove outer airbox cover, it is sitting right there, held on by two or three torx screws, unplug, disconnect servo cable, reverse order to install new one. Lube your servo cable while you are in there.   Stevedplumber Posted on Saturday, July 30, 2011 - 11:59 am:        part ordered, was not cheap.   Mr_grumpy Posted on Saturday, July 30, 2011 - 01:29 pm:        Question, Are you certain it's the actuator itself? or is the cable stuck or butterfly stuck, thereby causing the actuator not to function. I always check the cheap things before ordering the expensive ones.   Stevedplumber Posted on Tuesday, August 02, 2011 - 08:22 am:        i guess i should have mentioned i am running an "odie special ops" exhaust. http://www.specialops-online.com/4436.html   Sifo Posted on Tuesday, August 02, 2011 - 10:05 am:        It's still worth checking the rest of the system. Just take off the outer airbox and pull the cable to see that things move smoothly. If it's hanging up, find the cause and fix that first. Has the code been cleared? Has it returned? It may have been a bit of a fluke. It's not a critical item like if the oil light is on. If it's been cleared and it returns I would fix it though.   Stevedplumber Posted on Tuesday, August 02, 2011 - 10:22 am:        it was cleared by the dealer tech and did return on the subsequent test ride   Sifo Posted on Tuesday, August 02, 2011 - 10:34 am:        It's an easy fix then. Sits right on top of the inner air box. A simple pull test on the cable will let you know if the rest of the system is working smoothly. It's just a couple of screws and a plug in connector. It wouldn't hurt to drip some cable lube down the cable while you're in there. I think the valve on the muffler is supposed to get lubed to as a periodic maintenance item. I'm not sure how easy it is to get to that without dropping the muffler though. Mine is long gone, so I can't check on my bike.

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