Is there a firmware upgrade for the FCDs on the 2003 HCH I's? I've seen mention of it in various posts but they were unclear as to what year of HCH I. I've also looked on the NHTSA site and can't find a bulletin that addresses this. The closest I have found is one that mentions an odometer issue (# 10013805). My local Honda dealer didn't think there was any such upgrade.

On 4 tanks and 2000 miles I find my FCD to be about 10%+ optimistic (45.0 on the FCD vs. 40.4 calculated). I think my first tank was an underfill because the numbers are slightly better for the last three tanks but its still not even close.

thanks
Shawn