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  1. #1
    Master Mechanic Burden33's Avatar
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    Default Engine code P0056

    I hooked up the programmer today to change a few things and it showed up with a engine code PO056 anyone know what the code means.


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  2. #2
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    mfleetwood's Avatar
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    Default

    See if this link helps you:

    http://engine-codes.com/p0056.html


    Mike (Denver, CO) - 2008 Sierra 1500 Z71 SLE 5.3L 4WD

    SUSPENSION: Rancho 4" Suspension Lift; Rancho RS9000XL Shocks; Rancho Skid Plates; Rancho MyRide Wireless Shock Controller;
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  3. #3
    Master Mechanic Burden33's Avatar
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    Default

    ya that linked helped thanks.


    Fabtech/Banks Ram Air |Fuel Off Road/ 315/70/17 duratracs |Hyper tech / Spencershids |
    Color Matched Bowtie |15% Tint on Front Windows|20% Tint on Back Windows




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  4. #4
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    mfleetwood's Avatar
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    You're welcome!


    Mike (Denver, CO) - 2008 Sierra 1500 Z71 SLE 5.3L 4WD

    SUSPENSION: Rancho 4" Suspension Lift; Rancho RS9000XL Shocks; Rancho Skid Plates; Rancho MyRide Wireless Shock Controller;
    TIRES:
    BFG All Terrain KO 315/70/17
    DRIVE TRAIN: 4.56 Gears; Detroit TrueTrac Differential; True Cool 40k Transmission Cooler
    PERFORMANCE: DiableSport Predator Tuner; Custom Tuned by Diablew; Magnaflow Exhaust; AFE Cold Air Intake
    ELECTRONICS: Kenwood DNX6180 Touchscreen; Subthump box w/10" Kicker; Driver Information Center (DIC); Rear View Camera
    ACCESSORIES: Westin Brush/Grill Gaurd; Westin Nerf Bars; Truxedo Tonneau; 20% Tint; Tow Mirrors w/Heat & Signals

  5. #5

    Default

    Where on the truck is that sensor for me to change it myself?

  6. #6

    Default

    Quote Originally Posted by chevynewb4 View Post
    Where on the truck is that sensor for me to change it myself?
    O2 sensors are on the exhaust pipe, before and after the cat converter.
    I like all dogs I meet, and some people too.

  7. #7

    Default

    Its showing bank 2 sensor 2. So would that be the second sensor on the exhaust pipe?

  8. #8
    Master Mechanic BurbanMan's Avatar
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    Only problem with this is that an o2 sensor code can be thrown by more than a bad o2 sensor. That could indicate an emissions vaccum leak as well. Cel codes are only a basis to begin diagnostic. That's why so many people get pissed off at autozoners when they buy part after a code reading and it doesn't fix the problem
    Chuckie!!!


  9. #9

    Default

    Ya I know...tough to be sure. Just want to know where that bank 2 sensor 2 is thats all.

  10. #10
    Master Mechanic BurbanMan's Avatar
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    Quote Originally Posted by chevynewb4 View Post
    Ya I know...tough to be sure. Just want to know where that bank 2 sensor 2 is thats all.
    ah yeah. I forgot to post that. Pass side after the cat. If you only have one o2 sensor behinds the cat, that sort of narrows it down to a definite answer lol
    Chuckie!!!


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