× 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: temp gun on cat
Posted to Technical Theory Forum on 9/9/2008 2 Replies

[...trimmed text...]

Jim, What about the old gm get the cat warm, disable ignition and look for CO2 above 12 % and HC's under 500 ppms?

Rob

Login to read more.

2 Replies Received (View Replies)