Hey, just has the same prob bought a code scaner and it's cool as heck, anyway i was getting the same code bank 1 and bank 2 to lean, after some reading found the rubber elbow under the radeator line sucked shut, also found the last time i had the oil changed at wally world, right below the maf sensor the didnt hook the line comeing into the side where air filter was,,,, anyhow that took care of my prob,,, hope that helps