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P0420 Code Nissan Perfect Nissan . We are driving to pick up some brakes and i noticed the ses light was on so i had o'reilly check it and it was a p0420 code which could mean numerous things. When the readings from the upstream and downstream oxygen sensors show. I have an 03 Nissan Murano SL that has a code P0420 Catalyst efficiency below threshold (Bank 1 from www.justanswer.com We are driving to pick up some brakes and i noticed the ses light was on so i had o'reilly check it and it was a p0420 code which could mean numerous things. Easy to pick up, ship or transport vehicles. It indicates that the catalytic converter is not functioning efficiently, so the vehicle is.

P0455 2006 Nissan Altima Sedan . Sentra 2006 1.8 se code p0455 (mtaranov) postby specdracing » mon nov 17, 2008 3:48 pm. Discussion starter · #1 · jun 4, 2010. P0455 2006 Nissan Altima Sedan from www.autocodes.com Discussion starter · #1 · jun 4, 2010. The car turns over but won't crank. We've got 4 newer sentras in years ranging from.