Newest Gallery Photos

  1. Chevy Truck Forum

    Welcome To!

    The #1 Chevy Truck Forum Online

    Online since 2004, we're the #1 Chevy Truck & SUV 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! Do it today and we'll see you on the forums soon!

Fuel Vapor Pressure Sensor???

Discussion in 'Performance & Fuel' started by vncj96, Nov 2, 2009.

  1. vncj96

    vncj96 Epic Member 5+ Years 1000 Posts

    What does this thing actually do, why does the ECM need to know the pressure for the EVAP system? I keep getting codes related to it, can it hinder MPG at all, I am having a hard time finding info on this damn thing.

Share This Page