changed pcv, elbow with hole in it , changed valve cover gaskets, and plugs and # 3 cop and still having ruff idle and run. getting codes p0136 ( o2 for bank 1/sensor 2 ), p1131 fuel / air metering, and p0171 too lean bank 1. have torn this thing down twice looking for a vacuum leak, going crazy , need help!!!!

paid for dealer diagnosis, cylinder one down. they wanted 3 more hours diagnostic time ( $112.00/hour ) , found cracks on locks for connectors, used zip ties to hold , car running smooth again.:rofl: