Tank Size

[Cat909]

My buddy has a 04 Lb7 that we put efi on, and now that we did that his fuel guage is way off now, I put 26 gallons in all three of the parameters in the fuel system and it is still is not reading correct. Am i doing something wrong? It says Full but he really only has 3/4 of a tank.

Thank You, Jack

 

[LBZrcks]

Are you using the correct units? like metric vs. imperial

 

[McRat]

If you start with the customer's stock tune, then modify it, that won't happen. You apparently flashed a long wheelbase tune in it.

Just open a short wheelbase tune and copy over the differences. You might run into other issues though depending on what options the two trucks had.

 

[Cat909]

We used nick's race tune. How can you tell if its long wheelbase tune? Thank You, Jack

 

[McRat]

LB trucks have 34 gallons listed as fuel tank size.