View Single Post
Old 07-01-2019, 04:59 AM   #6 (permalink)
Master EcoModder
Ecky's Avatar
Join Date: Dec 2011
Location: Vermont
Posts: 3,984

Gaptooth (retired) - '00 Honda Insight
Team Honda
Gen-1 Insights
90 day: 54.26 mpg (US)

Such Fit - '07 Honda Fit Sport
90 day: 41.27 mpg (US)

Connect - '15 Ford Transit Connect XL
90 day: 24.03 mpg (US)

K-sight - '00 Honda K-sight
Team Honda
90 day: 46.58 mpg (US)
Thanks: 1,750
Thanked 1,689 Times in 1,079 Posts
If the ECU doesn't make a long-term fuel trim adjustment (or the adjustment isn't quite enough), every time you change throttle position it will swing rich until the O2 sensor has a chance to correct.

It's possible that even if it does make the correction, it will need to relearn it every time you start the truck.

Ideally you'd get aftermarket engine management and correct for the larger injectors.
  Reply With Quote
The Following User Says Thank You to Ecky For This Useful Post:
hat_man (07-01-2019)