89 chev trk. tbi. what part makes the engine fast when cold?
- WayneLv 51 decade agoFavorite 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.
- nickersonLv 43 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 61 decade ago