× 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
Re: P0431 recurring but not P0421??
Posted to Technical Discussion Forum on 12/3/2008 2 Replies

[...trimmed text...]

I'm assuming you think B2 is new since the 2000 RPM looks less active than B1 and so you conclude that must be the new cat. However, the PCM disagrees with you.:)

[..... Login to read more.

2 Replies Received (View Replies)