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Old 11-01-2010, 07:59 PM   #1 (permalink)
Seasoned Rider
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Join Date: Nov 2008
Location: Atlanta, GA
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Erratic Idle

I need your help. I have an 09 RG with Rinehart slip on mufflers, SE air filter kit and was race tuned when I got it a year ago. About 2 months ago it started with an erratic idle once warmed up. It would run at 1000 the jump up to 1200, then drop to 950, the 1000 then rides/runs great just off on the idle. I recently installed TW6-6 cams, PCV & autotune and it idles on the same cycle but it is way rich now. I'm seeing 11-12 AFR on the front cylinder and 12 AFR on the rear cylinder. The bike runs great on the road but the idle now must be corrected. I have 7400 total miles on the bike.

Could this be a bad TMAP sensor or bad temp sensor in the head? I can't be the only person to have this happen and need your help with the fix. Thanks in advance.

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Old 11-01-2010, 10:16 PM   #2 (permalink)
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did you change the Map when you changed cams? A DTC's stored?
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Old 11-02-2010, 06:20 PM   #3 (permalink)
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Thanks, Yes they loaded a map for me to work from.Tonight I reset the AFR on the 0 idle cell for each cylinder. They are both now at 13.5 on idle and all is good.
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