Has anyone done this? I have a 2015 6.2 4x4 that I want to run e85 while still bein able to switch to 93...I'm looking for some info and maybe some how to along with part numbers. I've looked around and haven't really found anything on it, but I've seen it's been done. Any help would be greatly appreciated!

 

What are you using to tune with? HP or EFI live.. I just went to the dealer and pull a VIN off of a 5.3 Sierra Denali on my way to the parts counter. Compared the parts difference between VIN's and purchased 4 parts I think to do it. Or you can just have a [Gas Flash] and [E85 Flash] See the link for more instructions, you'll need a pin out for your ECM. I got that from my dealer also

Flex Fuel Sensor install - Corvette Forum

 

I think my tuner uses HP tunes. Im not 100% on parts yet... when you do the install can you take pics with part numbers. It would probably a good post to have in general for other guys wanting to do the swap.

 

From what ive been reading, you don't need to modify anything,,, The plug for the sensor is already mounted. Idk though. Im about to go look under my buddies 5.3 flex truck to see if there is any difference.

 

I've been running mine for some time. Check out this link for a how to...

https://www.performancetrucks.net/fo...ng-e85-536554/

 

Pictures are hard to see how he did it... in all honesty I'm at a loss. I'm now trying to figure out how to add the sensor to the line, it looked as if I would have to cut it, but I don't know what to use in order to reconnect the lines. Here is a picture of 15' 6.2 fuel lines how it's ran (lst picture) and my buddies 5.3 fuel lines (last two pictures).

Edit: for some reason the pictires are upside down and it won't let me rotate.

 

If you purchase the 3 pieces from a FlexFuel 5.3 you won't need to cut anything. The sensor goes in after the 1st piece coming off the tank if I recall.

If you just purchased the sensor it won't just fit in somewhere, you'd need to splice the fuel line to do it. I didn't do it that way.

 

There are a total of four lines and potentially two clips that are required to install. There are a couple different line sets for cab configuration and engine type. I tried to figure out all the configurations with no success.