Anonymous asked in Cars & TransportationMaintenance & Repairs · 1 decade ago

89 chev trk. tbi. what part makes the engine fast when cold?

4 Answers

  • Wayne
    Lv 5
    1 decade ago
    Favorite Answer

    The computer is adjusting the fuel delivery and timing to warm the engine up.

    BTW - 89 trucks with throttle body injection systems (tbi) don't have carbs or chokes.

  • 3 years ago

    try a tankful of top rate if that facilitates then probable try chillier spark plugs and see if the knocking is going away. A knock sensor often retards the timing so it would not pass via preignition.

  • 1 decade ago

    I think you are talking about the choke on your carbuator. This changes the fuel and air mixture untill the car warms up

  • ?
    Lv 6
    1 decade ago

    Fast idle.

Still have questions? Get your answers by asking now.