Fuel tank?

[Dnormz311]

Hey guys question for you? I have a 2019 ram 1500 with a 5.7l. It had the 24 gallon tank and I swapped it for the factory 33 gallon tank. Fuel pump and sender is the same part number for both so I used the old pump. When I fill up truck now the range till empty says around 350 which is what is said before and the gas needle works but only for around 350miles then the low fuel light comes on. When I go to fill it up in only takes about 20 gallons so I know there’s more in the tank. Any idea how to relearn the truck ecu or program it? Thanks.

 

[Dinky]

Hey guys question for you? I have a 2019 ram 1500 with a 5.7l. It had the 24 gallon tank and I swapped it for the factory 33 gallon tank. Fuel pump and sender is the same part number for both so I used the old pump. When I fill up truck now the range till empty says around 350 which is what is said before and the gas needle works but only for around 350miles then the low fuel light comes on. When I go to fill it up in only takes about 20 gallons so I know there’s more in the tank. Any idea how to relearn the truck ecu or program it? Thanks.

Alfaobd. I don't know what settings need to be changed but I know people have done it.

Search here.

AlfaOBD

Please Read!!! Supported years: 2013 to 2018 Make a backup of your original BCM configuration before making any changes. While we have a few BCM configs to compare with, there is nothing like comparing to your own pre-changes. Instructions: Uploading System ID (BCM) Information: Thank you...

www.ramforum.com

 

[GTyankee]

sounds like a simple software change

look into the ALFAOBD software programmer
check into the options that it can change

 

[Dnormz311]

Thank you I will try that!

 

[runamuck]

a software thing. my '19 laramie 1500 4x4 5.7 3.92 ccsb would often show over 600 mile range after a fill up.