P2272 -2008 gmc 1500 4.8 ltr. have replaced sensor twice same code again

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Carguy1 · Answer 1 · 2019-01-08T16:42:01+0000

Hi there,

Since replacing the sensor hasn't solved the issue, it's likely a wiring problem. Here is some more info for you.

P2270 GMC - HO2S Signal Stuck Lean Bank 1 Sensor 2

Read more: https://www.autocodes.com/p2270_gmc.html