[8BudweiserFan]

OK. I've changed the fuel filter. I do have about 8 P.S.I. more now on the fuel rail. Still have the rough idle though. I started pulling vacuum lines and when I pulled the line going to the M.A.P. sensor it leveled out and started running smoothly. I thought this is great. The M.A.P. sensor is bad. Then I thought, well, I have no codes showing for the M.A.P. sensor. So, now what do I do. Should I waste $50 on a new sensor or is there another problem?