09 cold start problem
Road Captain
Joined: Sep 2005
Posts: 558
Likes: 2
From: Richardson, Tx
When starting cold, my 09 ultra idles back and forth betweeen maybe 1,800 RMP down to maybe 400, and often dies. After about 30 seconds it finally stabalizes better. The dealer said this is an issue but no fix is availble from factory since there is no error code. It may take an ECM update. For now, he has no solution. Has anyone else experienced this problem or have any info? Still very happy with the bike, just looking for any news on a fix.
Mine 09 did the same thing until last week when I had it Dyno tuned. I used a guy that did a direct tune of the ECM. He used the Dybolink system. It does not do it anymore. There are a couple of the tables in the ECM that regulate starting parameters like feul, air, and rpm. I think the stock values are screwed up. The whole bike runs smoother after the tune.
Advanced
Joined: Aug 2005
Posts: 64
Likes: 0
From: Ohio
My 09 Ultra does the same thing. I thought the PCV would help the problem out, but still does the same as when the bike was stock. Mine goes up to 1500-1800 RPM and down to about 1000 then back up, back down, back up and so on. The RPM's does this for a couple minutes then everything is OK. Also does it when started hot not just a cold engine. I have 9500 miles on the bike and FM map with the PCV.
Tim
Tim
Elite HDF Member
Joined: Oct 2008
Posts: 3,555
Likes: 119
From: Brockport, NY
I'm with Dakota even though I've got 12K miles on my Ultra with FuelMoto Package. When cold start, My RPM's goes up and down for a minute or so then the rest's good all day long. No problems.
Thorey
Thorey
Road Captain
Joined: Sep 2005
Posts: 558
Likes: 2
From: Richardson, Tx
My 09 Ultra does the same thing. I thought the PCV would help the problem out, but still does the same as when the bike was stock. Mine goes up to 1500-1800 RPM and down to about 1000 then back up, back down, back up and so on. The RPM's does this for a couple minutes then everything is OK. Also does it when started hot not just a cold engine. I have 9500 miles on the bike and FM map with the PCV.
Tim
Tim
Road Warrior
Joined: Dec 2007
Posts: 1,498
Likes: 213
From: Atoka, TN
Add me to the list.... I had left town for 3 weeks and when I got back the weather was miserable so I couldn't ride for a couple more days... Now the temp is down and on a cold start my bike has the high to low idle for about ~20 seconds then it dies. I can play with the throttle to keep it from dying and once the bike is close to warmed up, it runs fine.... This sucks...Just what I need, spend another $400+ on a TTS or SEPST.
Chris
Chris
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