× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P0430 Diagnostic Trouble Code Discussion for September 2008

Catalyst System Low Efficiency (Bank 2)

Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0430
Help Request Posted
2005 Dodge Stratus SXT 2.7L MIL Lamp on VIN: 1B3EL46R35
P0430: Catalytic 2/1 Converter Efficiency. I have worked on 5 - 10 vehicles that set these codes for catalytic converter efficiency. In each case, I have been unable to determine why the catalyst monitor fails. I have replaced both catalysts, all 4 O2 sensors and the PCM on one car before it was fixed....
September 05, 2008
2001 Nissan Pathfinder LE 3.5L MIL Lamp on VIN: JN8DRO7Y41
P0430: Catalyst Efficiency Below Normal (Bank 2). ... sensors and the maf sensor codes po300, po171, p1145 all went away, But were replaced with p1491 (evap) po420 (cat efficiency) po430 (cat efficiency)..These "new codes" make me suspect that the system is doing a more complete self test now that the...
September 23, 2008