thanks, i went n bought the book, picked up a map sensor from a junkyard on a scrap 90 hb... its not an Si like mine, and the motor is d16a6 by the way, i stated it wrong before.... but anyway that seems to have solved the problem. faulty damn map sensor.... now i just have to fix the head gasket leak, adjust the timing, and i think she will be running decently enough to save the motor for now and work on body and suspension.