For the pass week my service engine light has been on had it scanned and came back po171 and 174 banks 1 and 2 lean... I'm pretty sure it may be a vacume leak but not sure if.. has anyone else had this problem??
Where's the most common place for the leak? Anyone have pics of where to look? I too have had these codes popping up along with P1639 Vid Block Corrupted. What's that mean?