E85 Questions

[ChiTownStang26]

@Jay-rod427

I have an sctx4 not a ngauge so I cant read ethanol % I even enable the pid and it just reads 0% on 93. The pump by my house says 53-83% should I try to find another gas station? Is there another way to test or read ethanol besides a ngague? I dont really want to spend 400 just to read ethanol %

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[BmacIL]

@Jay-rod427

I have an sctx4 not a ngauge so I cant read ethanol % I even enable the pid and it just reads 0% on 93. The pump by my house says 53-83% should I try to find another gas station? Is there another way to test or read ethanol besides a ngague? I dont really want to spend 400 just to read ethanol %

Do you have a bluetooth OBDII reader and the Torque app? Can also easily see the ethanol percent with the right PID.

 

[ChiTownStang26]

@BmacIL yes I have both... holy shit I had no idea... once again I owe you man haha

 

[Jay-rod427]

@Jay-rod427

I have an sctx4 not a ngauge so I cant read ethanol % I even enable the pid and it just reads 0% on 93. The pump by my house says 53-83% should I try to find another gas station? Is there another way to test or read ethanol besides a ngague? I dont really want to spend 400 just to read ethanol %

$15 buy a real e85 test tube. pretty simple to use, and highly accurate. I test every jug before it goes in my car since it's not a flex tune. Yes i pump 10 gals into jugs, test, then put in car.

 

[BmacIL]

@BmacIL yes I have both... holy shit I had no idea... once again I owe you man haha

I'll try to find the PID you need to read it. Check through the parameter list you have, and if you don't, let me know.

 

[shogun32]

I test every jug before it goes in my car

Just have a 55 gallon barrel shipped to your house. straight from the refinery.
Ethanol content varies with the seasons. eg. Sheetz told me as low as E50 during cold months and E85 during hot.

 

[AZ18yote]

Wish we had real e85 here in AZ again. We are left with flex fuel which year round is about e54ish.

 

[brucelinc]

I know the proper procedure on a flex fuel tune is to run the car until nearly empty before adding a different type of fuel. However, that is a little tricky when traveling. If the car has, say a 1/4 tank or more 93 in the tank and you fill with E85, will it eventually learn....or never learn since there was too much of the 93 in the tank to trigger the learning?

Curious since I am considering a FF tune.

 

[BmacIL]

I know the proper procedure on a flex fuel tune is to run the car until nearly empty before adding a different type of fuel. However, that is a little tricky when traveling. If the car has, say a 1/4 tank or more 93 in the tank and you fill with E85, will it eventually learn....or never learn since there was too much of the 93 in the tank to trigger the learning?

Curious since I am considering a FF tune.

1/4 tank is fine. I've done that many times. It will start adjusting fueling as soon as you start driving.

 

[AZ18yote]

1/4 tank is fine. I've done that many times. It will start adjusting fueling as soon as you start driving.

That's the beauty of a flex tune vs straight e tune. May not get the immediate timing ramp up but the convenience of it is worth it if the vehicle isn't just a track queen and still get similar timing up up top.

 

[Zelek]

I went to 2 miles to empty and put in 93 octane and it still read 32.2% on the Alch%. Started to get positive knock during about 40% throttle while it was stuck at 13 AFR. Didn't seem to sense it correctly that time. I flashed my 93 emissions tune on since I need to get inspected here soon and it's back to running fine at 14 AFR.

 

[AZ18yote]

I went to 2 miles to empty and put in 93 octane and it still read 32.2% on the Alch%. Started to get positive knock during about 40% throttle while it was stuck at 13 AFR. Didn't seem to sense it correctly that time. I flashed my 93 emissions tune on since I need to get inspected here soon and it's back to running fine at 14 AFR.

If it's not learning quick enough can always do a KAM reset should fast track that lol.

 

[BmacIL]

I went to 2 miles to empty and put in 93 octane and it still read 32.2% on the Alch%. Started to get positive knock during about 40% throttle while it was stuck at 13 AFR. Didn't seem to sense it correctly that time. I flashed my 93 emissions tune on since I need to get inspected here soon and it's back to running fine at 14 AFR.

That's odd. At that AFR I'm surprised you had knock. How long did you drive it? When I was doing flex last year, it took 2-3 miles of light driving minimum to fully learn, if not a little further.

 

[Zelek]

That's odd. At that AFR I'm surprised you had knock. How long did you drive it? When I was doing flex last year, it took 2-3 miles of light driving minimum to fully learn, if not a little further.

About 6-7 miles home from where I filled up at. The alch% didn't drop far enough.

 

[Loki-GT]

I found E85 after going to all the stations listed as having it and not actually having it. I found a Shell gas station that states it is E85, going there tonight hopefully around 5 to 10 miles to empty then adding a few gallons of E85 and then tuning right there at the gas station and then waiting for a few minutes and driving gently for a few miles until I see AFR changing then I'll do a WOT test and log. The E85 tune I'm ordering the tester from Amazon and using that at the Shell station before tuning and logging it.

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