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!

1994 TBI fuel + idle issues

Discussion in 'GM Powertrain' started by weswins, Jul 6, 2011.

  1. weswins

    weswins New Member

    I have a 1994 Silverado with a 350 and upon deceleration, the engine seems to choke and upon start up it stalls ONCE! Only ONCE. After you restart it, it runs fine but a little rich.

    How can I remedy these little bothers?

    I know there is a way to adjust my mixture with the OBD1 port but I cant find a reliable answer with google searches or manuals.
  2. silveradotrailblazer

    silveradotrailblazer Epic Member 5+ Years ROTM Winner 5000 Posts

    Have you tried removing the throttlebody and cleaning top and bottom with throttlebody cleaner? Also take the IAC out of the throttlebody and clean with the t/body cleaner. Spray inside the t/body where the IAC came out. The IAC gets carboned up and can't move in and out freely.

Share This Page