So my check engine light came on. I checked it and two codes read: P1457(emissions) ; P0303(cylinder 3 misfire). What do these mean and how can I fix them? I also might have an exhaust leak which may be the cause of something wrong with my fuel injector. Please help!? Thanks

 

welcome to the forum. if you have high milage on your engine and have not done a tune up, check/change or replace the spark plugs, plug wires, and (clean ) injectors. then have the codes removed and see if they return.