Tuning E85 startup
Thread Starter
Instructor
Joined: Jan 2009
Posts: 121
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Tuning E85 startup
Guys running E85, what have you done to get your car to fire easier on E85? Mine likes to crank an extra 2 seconds and it's kind of annoying. I've tried adding 30% to the Cranking Fuel tables as well as adding fuel to the Cranking VE table. What have you done with success?
Thanks!
Dave
Thanks!
Dave
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
You need to change the fuel in the "commanded fuel in OPEN LOOP normal"table in the startup fueling and RPM ranges
On a gas eng with major mods like hds/cam/hdrs --the stock commanded fuel is way too rich like 13.75---I had to lean it down to 16.12 to ge it to start nicely--
With E85 it depends on a couple of things----Do you run straight E85 ALL the time and never mix it with just gas ?? Did you install the Ethanol sensor that adjusts the mix depending on what's in your tank ??
Hard to say which way to go depending on the answers to above--But you can try it both ways--I will guess that your car is NOT equiped with an ethanol sensor and you run E85 all the time--If you have stock cam/hds-- I'm gonna guess you need MORE fuel in the "open loop normal table"
On a gas eng with major mods like hds/cam/hdrs --the stock commanded fuel is way too rich like 13.75---I had to lean it down to 16.12 to ge it to start nicely--
With E85 it depends on a couple of things----Do you run straight E85 ALL the time and never mix it with just gas ?? Did you install the Ethanol sensor that adjusts the mix depending on what's in your tank ??
Hard to say which way to go depending on the answers to above--But you can try it both ways--I will guess that your car is NOT equiped with an ethanol sensor and you run E85 all the time--If you have stock cam/hds-- I'm gonna guess you need MORE fuel in the "open loop normal table"
