I know that there's a thread about this somewhere I can't find it . I have a 93 4.9L f150. I just had the plugs, wires , distributer , fuel pump and a new tank put on . It ran ****ty before this on both tanks . But after all that it runs ****ty on the front tank . Back tank it runs fine. What am I missing? Does each tank have its own injectors? I'm lost honestly.

 

Which tank was replaced? Each tank has it's own pump but everything else is common.

 

Front tank and fuel pump were replaced .

 

Back tank has a bad pump (valves).