My car has been running pretty poorly lately. It seemed like it was running really rich, with almost zero torque down low. Pulling away from a stop it felt as if it would if you tried to drive off from a stop in 3rd gear. It would hesitate and hesitate to give you power then eventually it would go. It was also occasionally stall out when coming to a stop. I just got my laptop working again today and so I pulled an LV and was shocked to see this. What could be going on here. Please help me diagnose this.