× 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: 91 Corvette ZR1 failing NOx
Posted to Emissions Forum on 10/27/2008 1 Reply

O2 sensors are just before manifold cats and we sampled just after sensors with a tight fit tube. There are only 2 cats on this beast. Login to read more.

1 Replies Received (View Replies)