× 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: DTC P-0420, P-0430
Posted to Emissions Forum on 12/5/2000 2 Replies

Mazda had a rash of P0421 codes in '95, '96, they ended up with a reflash for the computer. You might check into that.

NW

[...trimmed text...]

Login to read more.

2 Replies Received (View Replies)