2004 f150 XLT 5.4L.

Check engine light came on 3 weeks ago. Pulled codes p0171 and p0174, running lean. I cleared the codes and they stayed off for 5 days, then the check engine light came back on. I ran some additives through it and cleared the codes. 4 days later, they came back. I continue to do this. My truck runs great, not idle or running problems? Dirty Sensor? Anyone else have this problem?

Thanks

 

Check for vacuum leaks. Is your intake stock or aftermarket?

 

Its stock