2013 Sierra 1500 5.3L 4WD--P0174 Code

Ghostpants1380

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Hey Ya'll,

My Trucks' check engine light came on, used a code read got a "P0174" Lean bank 2.

No vacuum leaks that I can see especially with a water test on the intake manifold. With live data I get LTFT of 25-27 on boith banks 1 and 2.

Short term is 1.6 on B1 and -1.6 on B2. Both O2 banks are reporting normal.

I decided to first clean the MAF Sensor, then I treated my gas w/ injector and a bottle of seafoam.

Check engine light went off in half a day. My truck sat for a couple hours and I started it up it came back on.

Any Thoughts?
 


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