Getting code P1111???
jarrod, the one check that I would tell you to try is to jack up the passenger side of your car. With the help of a second person, see if they can hear the fuel pump kick on as you roll the ignition switch to the RUN position (do not go to START). If they don't hear it kick on for a few seconds, have them hit the underside of the fuel tank in the center of the recessed semi circle that is there. Do they hear the fuel pump kick on now? If yes, then this pretty much confirms a fuel pump.
The other check you can do is to connect a fuel pressure gauge to the fuel rail. That will also tell you if the fuel pump is turning on or not. can't say that I have seen many wiring issues with the fuel pumps. All that I can think of have been the pump itself.
The other check you can do is to connect a fuel pressure gauge to the fuel rail. That will also tell you if the fuel pump is turning on or not. can't say that I have seen many wiring issues with the fuel pumps. All that I can think of have been the pump itself.
I'll try that one last thing though, just to be sure.
You are right, to change it you have to drop the fuel tank. If it turns out the be the fuel pump then you don't have to change the whole $500 dollar unit with level sender and all that. It's hold together with screws and if you open it up you can change only the fuel pump. You can get brand new ones for 50-150$ and even more, depending on what quality and brand you want.
You are right, to change it you have to drop the fuel tank. If it turns out the be the fuel pump then you don't have to change the whole $500 dollar unit with level sender and all that. It's hold together with screws and if you open it up you can change only the fuel pump. You can get brand new ones for 50-150$ and even more, depending on what quality and brand you want.
Thread
Thread Starter
Forum
Replies
Last Post
philwarner
XJ XJ6 / XJ8 / XJR ( X350 & X358 )
25
Jun 26, 2021 05:43 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)



