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Discussion Starter #1
Ok I have a 2011 RGC with around 900mi. I bought it new from a dealer and haven't done anything other than fuel it, keep it clean, and routine checks (oil, tires etc.). Some times when I start the bike doing the "Harley sequence", in neutral the bike will rev really high without even touching the throttle or handlebars for that matter. Then the check engine light will come on and stay on. Afterward the check engine light will remain on for each restart regardless if it revs on it's own or not. After the bike sits for a while say a few hours it may not do it on the next restart. It will also do this uncontrolled revving sometimes when I pull into a parking spot and prepare to shut down. The bike runs fine otherwise. Any ideas what's causing this? I've tried searching but I don't even know what to call this problem.
 

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Check for DTC codes. If the bike show any codes clear them. The Throttle By Wire bike will have a memory @ the ECM in other words if the bike is shut off while at a higher RPM the ECM will memorize the engine speed and set the idle speed at the memorize RPM. It is best to shut the bike down with your right hand using the main ignition switch. To correct the high idle problem make sure the run/stop switch located on the handlebars is in the run position then take the main ignition and turn it on until the check engine light turns off repeat this on/off procedure 5 times making sure the check engine light turns off each time, this should reset the idle speed to factory settings.
 

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Dealer/Warranty . The memory should not rev it high enough to throw a code.
 

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Yes the bike is under warranty use it if you need to. The check engine light will stay on when there is a code stored in the memory. Clear the code, the check engine light will go off, if the light come on again then there is a problem with the bike so take it to the dealer. The code that is showing may not have anything to do with the idle problem. Try cycling the main ignition switch 5 times making sure the check engine light turn off on each cycle. Doing the ignition cycle WILL reset the idle back to factory settings.
 

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Discussion Starter #7
The saga continues...

Well the bike started running worse. It was sputtering through acceleration and dying at idle so I took it to the dealer. They looked at it and found a loose connection at the throttle actuator or something. While on my way to pick it up it they called me back to tell me it was throwing codes again that they couldn't clear because it's telling them to replace the ECM. So now I have to wait until Tuesday for that to come it and get my bike back.

This is my first motorcycle and so far I'm not impressed with the experience. It's one month old and it's already crapping out on me. Sure I get that this kind of thing happens, but I'm not crazy about how the dealer seems so nonchalant about making it right. I'm starting to regret this purchase :(. Hopefully this is just an anomaly and everything will be ok moving forward.
Thanks to you guys' directions I did pull the codes before taking it in. Here they are in case anyone else has a similar problem.

ECM Codes: 5/2/2011
Cleared P0107 – MAP sensor low/open
Cleared P0651 – 5v ref 2 out of range
Won’t Clear P1510 – Throttle actuator control limited performance PN32933-11
Won’t Clear P2127 – Twist grip position sensor 2 low/open
Cleared P2138 – Twist grip position sensor correlation error​
 

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Well the bike started running worse. It was sputtering through acceleration and dying at idle so I took it to the dealer. They looked at it and found a loose connection at the throttle actuator or something. While on my way to pick it up it they called me back to tell me it was throwing codes again that they couldn't clear because it's telling them to replace the ECM. So now I have to wait until Tuesday for that to come it and get my bike back.

This is my first motorcycle and so far I'm not impressed with the experience. It's one month old and it's already crapping out on me. Sure I get that this kind of thing happens, but I'm not crazy about how the dealer seems so nonchalant about making it right. I'm starting to regret this purchase :(. Hopefully this is just an anomaly and everything will be ok moving forward.
Thanks to you guys' directions I did pull the codes before taking it in. Here they are in case anyone else has a similar problem.

ECM Codes: 5/2/2011
Cleared P0107 – MAP sensor low/open
Cleared P0651 – 5v ref 2 out of range
Won’t Clear P1510 – Throttle actuator control limited performance PN32933-11
Won’t Clear P2127 – Twist grip position sensor 2 low/open
Cleared P2138 – Twist grip position sensor correlation error​
Sorry to hear that. U should be fine with new ECM
 
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