[greenformula92]

you need to rule out a vac leak. another thing you can try is unplugging the MAP and see if anything changes. in other words if its a faulty MAP sensor throwing everything off you can eliminate it by unplugging it and the car will run. not to its full potential but it will run. if you have a vac leak the problem will still be present, if you don't the problem should be kinda solved, then you replace MAP and you are good to go. Potential vac leaks could be anything from a simple hose or the plenum and lower intake gaskets and so one and so forth. it could be a real can of worms