B15 Sentra (2000 - 2006)
Howdy. So recently, I’ve gotten the dreaded P0420 code on my 2002 Spec-V Sentra. I’ve had this car since 2015 and I think this is the first time it’s popped up. Ever since I got the code just a few days ago, I’ve been trying to drive it minimally and as close to like a grandma as possible. Since...