Diesel Bombers - HELP..2011 Denali

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DENALIHD

11-11-2012 09:27 PM

HELP..2011 Denali

Engine Code P140A...anybody know what this is ??...2011 GMC Denali 2500 HD

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Ikeep clearing the code and it keeps comming back on right away....like in seconds...

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this is the 6.6 Duramax Diesel...

BriteWhiteRam

11-17-2012 09:53 AM

DTC Information
Code: P0140
Modules: PCM
Description: HO2S Circuit Insufficient Activity Bank 1 Sensor 2

this is all I can come up with, hope it helps

If its still under warranty I would get it to the Dealer:tu:

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