OS#12597120 and Flex Fuel??
I have a 2007 classic silverado, its factory flex fuel, but not actual sensor. Im currently installing the actual sensor but ive read on some other forums that its not as easy as just switching actual sensor from no to yes (b3102). Can someone help me with this?
LS1B.ctz
-John
:drivin:
1991 RCSB 2WD Sierra LQ4 swap, 220/224 112 cam, Twin VSR 6766 turbos
4L80e w/shift kit, PY 3600, and 3.73 gears.
22 PSI and E85, 4300# with driver. 9.7@138, 1.47 sixty
Anybody!!??
-John
:drivin:
1991 RCSB 2WD Sierra LQ4 swap, 220/224 112 cam, Twin VSR 6766 turbos
4L80e w/shift kit, PY 3600, and 3.73 gears.
22 PSI and E85, 4300# with driver. 9.7@138, 1.47 sixty
We dont have E85 around here so never messed with that. But im sure they are talking about all the tables that have to do with the fueling and spark multipliers when more E is being seen.
As mentioned already, a handful of tables such as spark blend factor doesnt appear to be defined. Is this a stock file / do you have stock tune file? If it's a factory FF vehicle (sounds like it is), this spark blend table will already be populated so it should "work", but quite likely you would want to fine-tune that table based on your setup.
I can help you get those couple tables defined in this OS via cax file probably
Yes this is the the stock tune file, I've already added the flex fuel sensor to the truck. I still haven't tuned it yet, let me know what I'm missing if you would please!Originally Posted by aaronc7
-John
:drivin:
1991 RCSB 2WD Sierra LQ4 swap, 220/224 112 cam, Twin VSR 6766 turbos
4L80e w/shift kit, PY 3600, and 3.73 gears.
22 PSI and E85, 4300# with driver. 9.7@138, 1.47 sixty
See attached, I made a cax8 file that added a few FF params. From what I can tell, this file already has FF enabled. Just enable "sensor fitted" and make sure it's displaying alcohol content in the scanner.
Then find the spark blend factor that I added in the Spark folder as well, so you can blend in spark as you need it based on E content.
Put the cax8 file in ...\EFILive\V8\User Defined Cax8\LS1B folder. You'll need to use the V8 editor.
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