1. Welcome To GMTruckClub.com!

    The #1 Chevy Truck Forum Online
    Online since 2004, we are the #1 Chevy Truck & SUV forum and user community. If you have any questions about your Chevy or GMC Truck, SUV or Crossover, or just want to connect with other GM owners and enthusiasts around the world, you've found the best place on the internet to do that.

    Join Today ~ It's Free
    Registering is Free and Easy! Hope to see you on the forums soon!

98 GMC Suburban throwing PO174

Discussion in 'Chevy Suburban Forum (GMC Yukon XL)' started by Lttlman, Sep 10, 2012.

  1. Lttlman

    Lttlman New Member

    System to lean (bank 2). Any ideas what maybe causing this?
  2. Pikey

    Pikey Active Member Staff Member 2 Years ROTM Winner 1000 Posts

    Could be a bad o2 sensor giving poor readings. Does it run smooth? When was the last tune up?

Share This Page