2002 Nissan altima code p0303 P0303 2002 Nissan Altima Sedan - engine-codes.com Possible Causes and Repair Information for P0303 2002 Nissan Altima Sedan code. Learn what does P0303 2002 Nissan Altima Sedan means? P0303... Source Source Source Source Source Source Source Source Source Source Read Also: Code p0303 nissan sentra Nissan p0303 P0303 nissan altima 2002 Nissan sentra engine code p0303 P0303 nissan sentra Nissan altima p0303 cylinder 3 misfire