07-20-2023, 02:41 AM
It's been nearly five years and 17,000 miles since I replaced the IACV on my 2014 Dlx, and the idle problem has never returned. I tried disconnecting and grounding the battery, and it didn't work. A previous post stated that performing the battery disconnect and grounding resulted in a temporary fix, but I think the "fix" was a mere coincidence because my idle problem came and went at will, totally unpredictably.
For all the work I went through to replace the IACV (I followed the Honda service manual and removed the entire rear fender to allow clearance to remove the airbox) I would have prefered to replace, or reprogram the ECM, but the reprogram option wasn't available five years ago, and I had no information available then that replacing the ECM would work. My bike was examined by an authorized Honda dealer at that time, under warranty, and they performed a computer diagnosis that didn't find any errors. As luck would have it, the problem was not present when I delivered the bike to the shop.
For all the work I went through to replace the IACV (I followed the Honda service manual and removed the entire rear fender to allow clearance to remove the airbox) I would have prefered to replace, or reprogram the ECM, but the reprogram option wasn't available five years ago, and I had no information available then that replacing the ECM would work. My bike was examined by an authorized Honda dealer at that time, under warranty, and they performed a computer diagnosis that didn't find any errors. As luck would have it, the problem was not present when I delivered the bike to the shop.