mmakam2
Well-Known Member
- Joined
- Nov 30, 2015
- Threads
- 16
- Messages
- 309
- Reaction score
- 56
- Location
- Houston, TX
- Vehicle(s)
- 2019 GT350
Alright guys, I'll be the first to admit when I'm wrong.. I did some testing with a ethanol content sensor plumbed into my fail rail with a bluetooth analyzer VS Ford's flex logic with a Lund FLEX tune on my 19 GT350.
I tested ethanol content at various levels from E10-E70. Each time I filled over 4 gallons in the tank and let the PCM learn for less than 5 miles each time. I compared the readout on my bluetooth sensor app to the alcohol % PID in the SCT LiveLink software. Each time the calculated % was DEAD ON. The app didn't have decimals, so if the app showed 25%, livelink would show 25.34 or something like that. INSANE how accurate Ford's FLEX logic is.
Ive also found if you can get into the throttle a bit during the learn period, the computer has a faster time learning than if you just let it idle. Lund's advice was actually to let the car idle for 10min. during a relearn, but I have found the opposite works better to get an accurate learned alcohol %. The reason is because at idle it takes forever to get the fresh fuel into the lines, while driving within a minute or two you have the new mix flowing into the injectors.
I tested ethanol content at various levels from E10-E70. Each time I filled over 4 gallons in the tank and let the PCM learn for less than 5 miles each time. I compared the readout on my bluetooth sensor app to the alcohol % PID in the SCT LiveLink software. Each time the calculated % was DEAD ON. The app didn't have decimals, so if the app showed 25%, livelink would show 25.34 or something like that. INSANE how accurate Ford's FLEX logic is.
Ive also found if you can get into the throttle a bit during the learn period, the computer has a faster time learning than if you just let it idle. Lund's advice was actually to let the car idle for 10min. during a relearn, but I have found the opposite works better to get an accurate learned alcohol %. The reason is because at idle it takes forever to get the fresh fuel into the lines, while driving within a minute or two you have the new mix flowing into the injectors.
Sponsored