Recent content by bbmazda

Help with troubleshooting - M6 sportwagon w/85,000 miles. Hesitation and sputter under slight load and more pronounced on shift from 4th to 5th. P0171 and P0174 codes. Replaced plugs, PCV Valve and hose and cleaned the MAF. the intake manifold and EGR tube had a lot of oil residue. The CEL...