× 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: P0420
Posted to Technical Theory Forum on 1/14/2007

[...trimmed text...]

In what instance will a vacuum leak cause CO to rise? I'm not saying it's not possible, just would like to hear your take on the science behind it.

[...trimmed text...... Login to read more.