I just got off the phone with Don Guhl and he is getting ready to apply the latest reflash to my ECU. I had the Level 3.1 reflash done about 6 weeks ago and was still encountering a significant cold engine stumble in the 2,600-2,800 RPM range. He said they have modified the fuel mapping significantly to add more fuel in the lower rpm range. I should my ECU back by Friday, so am I anxious to see if this resolved the stumble once and for all.
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GL1800 (2012+): Guhl Reflash 2.0
GOLDWING AND F6B MAINTENANCE VIDEOS
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I have been patiently waiting for this issue to get sorted out. Once stable I'm ready to pull the trigger on an ECU flash.2012 Gold Wing Ultra Blue Level III
2009 Hayabusa - Texas Mile- 206.1 MPH | Loring- 1 mile 205.49 MPH, 1.5 mile 212.27 MPH (Stock Motor-ECU Editor Tuned by Me)
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I got the ECU back today and hope to do a test ride here in about an hour. Fingers crossed. However, the last time I had the reflash, the stumble left the building, but returned a couple of weeks later. Weird.GOLDWING AND F6B MAINTENANCE VIDEOS
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Only a short preliminary ride. Too soon to tell. I think I want to test it for a week before I post any results. The last time I had the reflash, I shot of my mouth about how it got rid of the stumble, then within a week, the stumble returned. I want to take a more measured approach this time.GOLDWING AND F6B MAINTENANCE VIDEOS
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Watch for my report coming Friday!GOLDWING AND F6B MAINTENANCE VIDEOS
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