I have a Flex Fuel 2008 F150 with a 5.4 that has intermittent long crank and about every 20 cranks when cold I get a misfire code.
Cant see where I can check the Flex fuel inferred% or FF-INF% to check the ethanol content of fuel in the tank versus FF-INF with the OBD car doctor
Also I cant see where the Flex fuel learned: yes/no or FF-LRN with the OBD car doctor
These PIDS should help me understand how the PCM is perceiving the fuel blend after a completed learn.
Please note that App "OBD Car Doctor" supports only reading parameters and ECU's specified with OBD-II standard, OBD-II PIDs. Unfortunately that's not much regarding mixed fuel at all. One might need to review make/model specific protocols or parameters to get idea, if there are some custom PIDs that might be useful at your case.
If you get to know details on custom protocols and appropriate PIDs, we could help write appropriate configuration file for the app.
Thanks!
https://ford.oemdtc.com/GSB/G0000079.pdf
I found this and on page 6 - 10 it gives some information that might help? to set up protocols
Update?
Unfortunately the document states only some inner naming for extended PIDs, like FF_INF, FF_LRND, etc. But it gives no idea on exact addresses, ID's and decoding formulas for reading this parameters.
smth like
PID: 220462
Long Name: Turbocharger Wastegate %
Short Name: Wastegate
Unit type: %
Equation: A/128*100
Thanks!
Dr Dennis
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