I am new to this forum thing but im having a slight poroblem my 2000 grand prix gtp is reading a really high barametric pressure reading of 98 and ware im at its only like 14.7 all it wants to do is sound like its sucking a ton of air then it dies, thought it was map sensore but its not and its not a vacume leak or mas eather so im kinda confused at this point.