2001 Sport Trac 4.0 SOHC - Bank 1 & 2 Lean

[nanaimoguy]

Hello,

I was driving last week and my check engine light came on. I plugged in my reader and gave me P0171 and P0174. Bank 1 Lean, Bank 2 Lean. So I recently replaced my intake gaskets about 2 months ago. Fuel Pressure is 65 PSI. MAP is good. I have checked for vacuum leaks and still nothing. I am a Mechanic but still can't fig it out. Ideas??? I don't wanna have to start having to pull things as this is my own transportation right now

 

[swshawaii]

IF you have a Job 2 SOHC, check the PCV elbow.

http://www.explorerforum.com/forums/showthread.php?t=314670