hot or cold hold steady speed it will miss serves light comes on then runs fine on 1992 Chevrolet S10

hot or cold it will miss only at steady speed getting up to speed is slugish replaced; map sensor off of another vehical they look identical and fule filter plugs and wires new the serves engine light will come on it will run fine

Asked by for the 1992 Chevrolet S10
1 answer
Find a GM specialist with a scanner to find out what the check engine light is trying to tell you. There are diagnostic codes available when the light's on which can be accessed using a scanner.
If you want to find a specialist, here's a directory link for you: