Ok so recently did a bunch of rewiring on the car, got it running again and went to check my flex fuel sensor to see ethanol % and it wasnt working. I said oh well dont have time to fix it as it was time for a race that I needed to make. Tuned the car with the e gauge reading 0% and baseline ethanol at 0%, both fuel multipliers at 100%.
Found I had lost power to the sensor, fixed that and now the E gauge is reading 78%. Started the engine and it is running really lean. Whats the simplest way to fix this without messing with VE tables?
Flex fuel leaning out ve table
Moderators: jsmcortina, muythaibxr
Flex fuel leaning out ve table
2000 Mustang GT 4.6 4V, MS3 Fully sequential,Twin 6466's,Glide, full fuel system 1100 WHP
8.78@160
Stock 2V Longblock- SAE 472Hp/469Tq on E85
11.27@121
8.78@160
Stock 2V Longblock- SAE 472Hp/469Tq on E85
11.27@121
Re: Flex fuel leaning out ve table
Im assuming since the sensor wasnt working correctly it was multiplying the fueling 1.67?
2000 Mustang GT 4.6 4V, MS3 Fully sequential,Twin 6466's,Glide, full fuel system 1100 WHP
8.78@160
Stock 2V Longblock- SAE 472Hp/469Tq on E85
11.27@121
8.78@160
Stock 2V Longblock- SAE 472Hp/469Tq on E85
11.27@121
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- Master MS/Extra'er
- Posts: 581
- Joined: Sat May 10, 2014 4:57 am
- Location: New Haven, Ct, USA
Re: Flex fuel leaning out ve table
Increase the scale of fuel in the flex settings
example- E0= 100% of fuel, E100=175% or 180%, ect.
example- E0= 100% of fuel, E100=175% or 180%, ect.
BootlegTuned
-
- Super MS/Extra'er
- Posts: 1341
- Joined: Mon Sep 05, 2011 1:20 pm
Re: Flex fuel leaning out ve table
Unplug the sensor and worry about it later.
Graduate of EFI University.
I build, repair, install and tune Megasquirt systems in North Dakota and beyond!
I build, repair, install and tune Megasquirt systems in North Dakota and beyond!
Re: Flex fuel leaning out ve table
You were on the right track but the scale for ethanol mix cant be set above 100. I set the fuel multiplier to 163 and it fixed the tune issue. Thanks for the help93supercoupe wrote:Increase the scale of fuel in the flex settings
example- E0= 100% of fuel, E100=175% or 180%, ect.
2000 Mustang GT 4.6 4V, MS3 Fully sequential,Twin 6466's,Glide, full fuel system 1100 WHP
8.78@160
Stock 2V Longblock- SAE 472Hp/469Tq on E85
11.27@121
8.78@160
Stock 2V Longblock- SAE 472Hp/469Tq on E85
11.27@121