I have a 1996 oldsmobile lss, well sort of! It has a 2007 buick Lucerne engine, 2000 bonneville 4t65e tranny, 1999 lss ecm, 2005 metal upper intake with the stock throttle body and most if not all sensors are new. Also it has new matched flow fuel injectors. Also it has the camaro dual piston brake upgrades. But the title says it'* a 1996, so we will go with that.
The problem is this:
Back before all the changes It had a lean code on bank 1. Also when you start the car sometimes you will get a loupey idle for a minute then it will go back to normal. This problem has never gone away no matter what. So I wondering if it is the fuel pump, it has never been changed. The car has 210k miles on it. So should I change the fuel pump?? The fuel regulator is new.
Will a late model fuel pump and guage sender unit swap in? (used)
Which fuel pump would you recommend?
Also does someone have a wiring diagram to build a fuel pump hotwire system?