I know I need the OBD0 dist. and I need a cylinder position sensor because the the 95 ZC does not have one. Does anyone know why? I'm stuck, though, on what to do about the MAP sensor. As you guys know after 92 they are on the T.B and on my car it's on the fire wall. Also There are two sensors under the intake mani. (By the oil filter) on the 95 ZC. One has one prong sticking out and the other has a bolt where that second sensor should be, but it's gone. Does anyone know what those sensors are for? I think they are oil pressure and water temp. The problem is I broke the two prong sensor from my old engine and now I can't transfer it over to the 95 engine. What would happen if I where to not hook it up?