Hi everyone I have 2009 f150 4.6 xl
and i got 2 permanent codes p0401 and p0442

P0401 exhaust gas recirculation flow insufficient detected.

p0442 small evap leak

I check all vacuum hose they look fine all around
for The first code I took the egr out and clean it wasn’t that bad but code won’t delete assuming I have to drive a bit to let it cycle?
how I test the 09 egr all I find is 04-08 videos.

any help on does codes and what to look for?
thanks everyone

 

https://www.f150forum.com/f38/caples...-p0442-379322/

 

Here is a link to diagnosing a P0401. Certain emissions related codes will hang out as permanent codes until they pass the drive cycle tests.

https://charm.li/Ford%20Truck/2009/F...0Charts/P0401/