so i got a problem i have a 88 mk3 supra with the maftpro 5.11 it was a/f tracking fine at 47.7 i was just about to take it out for the rest of the tune then i found a vacume leak i fixed it now its running lean at 18.4 at a idle i cant fix it where do i start the book is no help i read it 20 times now and it dont tell u anything.....