last time (yesterday) it put out system too lean bank one and also system too lean bank 2

 

I would check the FPDM and report back.

 

Ok going to look up FPDM Thank You

 

You Tube

 

Ok I pulled it out no gaping holes anywhere but maybe some porosity type pinholes but i cant tell if they go all the way thru but i might throw a hundred bucks and change at it before removing the bed and replacing fuel pump

 

It could be a possibility. Those things cause a lot of weird problems. I cant really tell you where to spend your money or what on, you can always use a gauge to check the fuel pressure at your fuel rails to see if the pressure is low. That would point to either the pump, the FPDM, a clogged line, or possibly a bad inertia switch but I think the last one would probably kill it and no start so I don't think its the inertia switch.

 

You don't have to pull the bed to change the fuel pump. You just drop the tank. It's a PITA, but not as involved as removing the bed. A few months back I swapped from a 27 gallon to 36 gallon tank. I'd say it's a 5-6 on a difficult scale of 1 to 10...

 

Also, the fuel pumps seldom go bad on these trucks, like stated replace the FPDM. Lean codes can also be attributed to the pressure sensor on the fuel rail, air/vacuum leaks, and even bad timing components.

 

I checked the pvc 90 elbow on the back of the intake and I sprayed it and the hose with starting fluid and did not get any indication of it sucking it in so i think I eliminated vacumn leaks unless i missed something

 

Replaced the FPDM last night drove to town today and problem is still there but I could not get it to throw codes this time