ok.. i have a 2003 chevy excab truck that i just converted to a crewcab and in order for the crew cab to work you have to have the gas tank from it.. here is the problem..
the 2003 excab was a return style fuel system and the crew cab tanks are ALL returnless and you can not interchange pumps the size is way different...
and it will read full when empty and empty when full... i think the return style pumps are a 90ohm and the returnless is like 200ohm maybe...
has anyone delt with this yet? cause this is real aggravating plus i will be putting a return style pump in my turbo truck here in the next few days and it has a returnless pump in it now... so i'm sure i will have the same issue with it as well....

 

canb you possibly just use the fuel level sender ( the float and wiring to it ) and make it work on the correct bucket?

 

they WILL NOT interchange... but i have epoxied one on it to make it work for the time being.. but i want it correct..

 

It can be changed with a tune...

 

are you 100% sure?? just askin cause can get a different comp if need be

 

cant use epoxy in a fuel tank or aroud fuel vapors. lol

 

anyone have any other thoughts

 

I have a locked/tuned ecm for my 07 silvy (returnless) that i put in my 03 tahoe (return) and the gauge red backwards..

You can use the returnless ecm but the fuel settings will need to be changed..Either way you'll have to change somethingin the tune...

 

It just need fixed in the tune buddy,