need some help any ideas?

[GTP in RTP]

EGR tube , they crack where they go in manifold.

Make sure throttle body screen is in and clean.

Pcv valve o-ring, missing ?

[scotty455]

egr tube isnt cracked but the connection to the rear header didnt get a good enough seal because i couldnt get my big ass hands back there to tighten it down all the way, just gonna delete the stupid thing when i get a tune. screen is in and clean just replaced the throttle body gasket two weeks ago so i checked the screen not too long ago. Pcv o ring is fine. if i had a vacuum leak wouldnt my gauge show it? not talking about the stock one in the cluster i have one from autometer

[GTP in RTP]

Only way to tell on the egr tube is to remove that end and shine a light in it. They develop a crack around the flared end, very small
but will trip an p0171

[scotty455]

so basically if i get my tuned pcm and have the egr tuned out it should get that code to stop coming back?