Does anyone have a diagram of the connections for the fuel pumps? Its about 10 lines going everywhere. My shop replaced the passenger side pump and all was well for a short period. Next the fuel gauge would not go to 4/4. Checked the sensor and one of the lines was not connected and draped over the sensor. I want to check to make sure everything is where it should be.

 

hey bonemechanic, unfortunately I can't answer this question for you. I was wondering if you can give me some insight into what led to your fuel pump replacement? Did the pump totally quit on you or did it act sporadically for a while? Thanks for the help. I'm trying to sort through some issues with my '06 CTTS

 

The left pump just went. Car ran ok but put a cel. I had my local shop replace it. It did well for awhile except the fuel meter not accurate. So I just replaced the Driver side pump, filter, and pressure sensor.. You should replace some connectors also.
I still wonder if it is connected correctly. Some point it runs great. Other times gives me half boost.
Some people say that you can check the pressure from the sensor using the Durametric but I haven't been able to do that yet.