[6wic_2_4_avenger]

I've been driving around with my check engine light on, of course I was really frustrated after finding my check engine light was on, right after i gave myself a tune up. This time it's throwing up the P0171 code. It's a 2012 dodge avenger 2.4L engine. And I've got about 140000 miles on it right now.
I changed the gascap already, and that didn't help. I still have the same code coming up, any help would be appreciated, trying to fix this so i can get my 2022 tags.

 

[Anomaly253]

Any luck bud?

 

[namretsud]

Try running a can of Seafoam in your gas tank. It does wonders cleaning out fuel and exhaust parts.

 

[Intrepid]

Sounds like a vacuum leak to me. Check any hoses or sensors that connect to the intake manifold. Make sure that they aren’t cracked and that they are tight. Listen for unusual noises.