U7186 - Fuel tank capacity.

porsche951 · Post by **porsche951** » Fri Mar 02, 2007 1:33 pm

I have a U7186 for my 2007 Duramax. I am considering a larger-capacity fuel tank. Will the U7186 allow me to update the fuel tank capacity stored in the computer?

johan · Post by **johan** » Fri Mar 02, 2007 4:50 pm

Not in its production state, could possibly get done via a custom tune.

goodwrenchtech · Post by **goodwrenchtech** » Tue Jul 24, 2007 10:08 pm

what kind of tank are ypu installinf? some places sell tanks that fit in the factory location which is good. no programming will need to be done if the installer uses the factory fuel sending unit out of the old tank. if truck is a short bed i have installed up to a 48 gallon tank in factory location, if long bed tank is around 60 gallon.