I need direction, as I'm not sure to which direction to head. I bought the car with a check engine light in hopes to fixing it. So far, it hasn't been the simple stuff. P1443 - EVAP Control System Purge Control Solenoid or Purge Control Valve Fault I have already: -Replaced Purge Valve and Purge Flow Sensor -Checked Carbon Canister (No Crack, Not Plugged) -Replaced all Rubber Hoses from the Canister to the Intake Manifold P0156 - O2 Sensor Circuit Malfunction (Bank 2 Sensor 2) I have already: -Replaced O2 Sensor -Verified Battery Voltage (12v) at connector -Verified Continuity from O2 Sensor Connector to PCM Connector (Signal and Heater Wires) This is what I get on the scanner. No activity for the rear sensors, although when I switch the rear sensors to the front, and recheck my scanner, I do indeed get activity. So I'm certain the the rear sensors are OK. Any guidance before I give up and take it to the dealer?