2004chevyman

I have done my share of research and still cant find the right answer,i have a 1986 Camaro with a 2.8 ,the check engine light is on the code that is set is 33 look it up and is calling for a map sensor. now I even went out and got a Haynes repair manual 1982 thru 1992 have looked every where that the map sensor should be and its not their,so I even looked in places that it should not be and still not theirneed some help real bad because before all this happen I just put a new motor and trans in it thanks to anybody that can help me

Vanilla Ice

Trace all the vacuum lines coming off the intake manifold. In order for it to be a Manifold pressure sensor it has to reference the manifold pressure somewhere.