[tbrown5079]

At this point I would find someone with a smoke machine to determine where all the vacuum leaks are and repair them before you replace anything else. I fought the PO171 and PO174 codes until I finally borrowed a smoke machine and found a gasket out of place on the right bank valve cover (the side the donor vehicle was hit on. The stud on the valve cover was even bent). I know this can be very frustrating. Tbrown