I have a 2016 Jazz with 52,000 miles, a normally aspirated 1.5 litre engine, and a CVT transmission. I live in Thailand.
For a while now, my Jazz has been hesitating and bucking between 1000 & 1500 rpm. There is NO check engine light and the fuel economy has gone down. If I push the accelerator quickly passed 1500 rpm, the hesitation is usually minimal. There is no hesitation when idling or under no load.
The air filter is clean, but after I checked the air filter and put the housing back together, it seemed to run better for a little while -- maybe just my imagination.
The car is designed for E85, which I use because it is cheaper, but sometimes I use 91 octane or 95 octane.
All the 'hesitation' problems I have seen on YT videos have a check-engine light associated, but mine does not, so I'm at a loss.
Of course I'm trying to save money on this, so any guidance would be much appreciated.
Thank you for your time.
Well the z85 fuel systems are very very complex and often the e85 being 85% ethanol absorbs a lot of water that normal gasoline won't you could have a problem with water being in a gas tank pray it's that easy
yea, 10% is even too much imo!
Also might be normal wear of the transmission and do the same jerking for another 150k miles.
I’d get your Honda dealer to look at the fuel pump. Honda just had a worldwide recall in June 2020 for a faulty fuel pump which would make the vehicle hesitate or not start (without any CEL). My sister’s 2018 Jazz/Fit was part of the recall however her car didn’t have any symptoms.
Get your dealer or a trusted mechanic in your area to pressure test the fuel pump or look at the live data when the car is hesitating.
Oh also, have you parked the car outside during pouring rain recently?
And you could try, pour B12 in it and run 91 (or higher) octane for a bit. Get at a well used Texaco station. This will help clean and get the water out. Drive it till fuel is low...only time I ever recommend that due to fuel pump cooling/lubrication btw.
