im trying to wire up a sir II b16 into my 92 cx. so i pull the old motor out and label everything on the wire harness. then i started to plug everything in on the b16. all the plugs went in smoothly with the exception of the evap purge solenoid. it was not on the back of the manifold like on my cx. now my map sensor on the b16 was an external unit the mounted on the fire wall. are there external eps's also?