P1175 GMC - Fuel Trim Cylinder Balance Bank 2

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What does this mean?

Possible causes

  • Clogged Fuel Injectors
  • Faulty Oxygen sensor
  • Ignition problem
  • Fuel injection problem
  • Engine mechanical condition
  • Tech notes

    The sometimes is triggered by clogged fuel injectors. Start by using high octane fuel and/or fuel additive to clean injectors. If problem persists fuel injectors may need to be replace.

    There is a factory service bulletin for the following GMC models:

    2000-2008 GMC Sonoma
    2000-2008 GMC Sierra
    2000-2008 GMC Yukon
    2000-2008 GMC Yukon XL
    2001-2008 GMC Denali
    2001-2008 GMC Denali XL
    2001-2008 GMC Savana
    2002-2008 GMC Envoy
    2002-2008 GMC Safari
    2002-2008 GMC Jimmy
    2000-2008 GMC Factory Service Bulletin OBDII Code P1175

    Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • P1175 Gmc Description

    The Fuel Trim Cylinder Balance diagnostic detects a rich or lean cylinder to cylinder air/fuel ratio imbalance in each bank. The diagnostic monitors the pre-catalyst heated oxygen sensor (HO2S) signal's frequency and amplitude characteristics by calculating an accumulated voltage over a predetermined sample period. An imbalance is indicated when multiple samples of the accumulated voltage are consistently higher than the desired value.
    OBDII Code P1175 Gmc - Fuel Trim Cylinder Balance Bank 2 - Engine-Codes.com

    Related Information

    Repair Importance Level: 3
     
    1=Low 2=Medium 3=High  
    Repair Difficulty Level: 2
     
    1=Easy 2=Moderate 3=Hard  

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