P0420 showed up on the scanner after 126,000 miles on an SUV. I had to replace the catalyst 1 bank. It's a converter between the firewall and the engine. I did the work myself on my porch. It's pretty easy once you know what you're doing. If not, just take your time and pay attention to what you're doing. I've been driving for a month now with no problems.
Upgrade Your Driving Experience With Lunsom'S Automatic Shift Knob: High-Quality Metal Car Shifting With Push Button & Long Stick Gear Head In Black
38 Review
Off-Road Fender Flares For Jeep Wrangler 2007-2018 JK & JKU Unlimited - Heavy Duty Flat Textured Steel Mud Guards In Black (Set Of 4) By Hikotor For Front And Rear Replacement (2 Or 4 Door Options)
47 Review
25Pcs Fender Liner Screws For Toyota Avalon Camry Corolla Scion Lexus - OEM #90159-60498
35 Review
Gooacc 50Pcs Hood Insulation Retainer Clips - Perfect Replacement For Grand Cherokee, Dodge Ram, Chrysler PT Cruiser, Plymouth Laser, Neon - OEM Part Number: 4878883AA
33 Review