Checked plugs, got check engine light
Bought a used 2007 tc. After driving it for 2 weeks I pulled out a spark plug to see what they looked like. It looked pretty old. Car had 94K at the time. Next morning I had a check engine light. Changed oil, filter, plugs, air filter. Still have check engine light and car is throwing multiple codes, P0138, P0441, P0455, P0606. Car runs great no issues at all. Just a pesky check engine light. Any thoughts out there. Didn't have a problem til I pulled out a spark plug.