No power till engine warms up on 2000 Chevrolet S10

Engine check light comes on a few seconds after start up.After it warms up I shut it off and restart it the light goes off sometimes but I have regular acceleration.

Asked by for the 2000 Chevrolet S10
Then start with the basics and see what code is stored for the light being on. It is telling you to have checked. All of us here would start by reading codes. Very basic info.