EB and CEL
Senior Member
Joined: May 2016
Posts: 745
Likes: 365
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Your understanding is now in error because the sensor you speak of has been eliminated long ago.
It gave references to what I post in my replies but everyone chooses to ignore the facts go along with old sources and keep repeating them.
Look then up and not spread miss information.
The fuel mix is detected by the Ox Sensor being wide band and that signal is processed by the a PCM software that is able to detect the extra Oxygen in the exhaust.
ALL the engines from at least 2015 on use the same basic software to do that no matter if an ECO v6 of 5 l v8, the same is done for the fuel coming out of the tank.
Turbos hanging on does not change this process as the same fuel flows to combustion and out the exhaust and detected in the same way and process.
I referred to the 2019 Manual and specific page, left column at the bottom but as usual someone will keep trying to post something different out of a different manual for a different year that says something different.
The Manuals have errors in them when referenced to other Ford Docs that are accurate. That Doc is the OBDII for each year and includes GAS, ENGINES SPECIFICALLY.
The description for fuel use is in each one.
Please don't keep coming back with what the Owner manuals say that are misleading.
Your understanding is now in error because the sensor you speak of has been eliminated long ago.
It gave references to what I post in my replies but everyone chooses to ignore the facts go along with old sources and keep repeating them.
Look then up and not spread miss information.
The fuel mix is detected by the Ox Sensor being wide band and that signal is processed by the a PCM software that is able to detect the extra Oxygen in the exhaust.
ALL the engines from at least 2015 on use the same basic software to do that no matter if an ECO v6 of 5 l v8, the same is done for the fuel coming out of the tank.
Turbos hanging on does not change this process as the same fuel flows to combustion and out the exhaust and detected in the same way and process.
I referred to the 2019 Manual and specific page, left column at the bottom but as usual someone will keep trying to post something different out of a different manual for a different year that says something different.
The Manuals have errors in them when referenced to other Ford Docs that are accurate. That Doc is the OBDII for each year and includes GAS, ENGINES SPECIFICALLY.
The description for fuel use is in each one.
Please don't keep coming back with what the Owner manuals say that are misleading.
No fart cans allowed
Joined: Mar 2016
Posts: 4,338
Likes: 2,361
From: MO
Would you care to post this mysterious and enlightening document that proves all of our owners manuals and vehicle labeling wrong? How would a 1st gen (pre-17) 3.5L with no port injection compensate for the ~30% more fuel needed for E85 when the HPFP is sized exactly to the stock power output? Are you implying that it's totally fine for a modern, relatively high compression turbo engine to run lean (the #1 killer of pistons after too much timing) for a bit while the computer adjusts long term fuel trims?
I proved to my satisfaction that a 2015 3.5 eco is not flex fuel compatible, based on the fuel filler door info. Any reasonable person that sees the label would not use E85 when it clearly says E15 maximum. I could care less if you "theoretically" can run E85 because the engine programming might be able to compensate for it. I guess some people have trouble to admit making a mistake. 🤷
