× 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: Have I forgotten how a cat works?
Posted to Emissions Forum on 9/19/2000

[...trimmed text...]

After you replaced the o2,did you change the oil?Could be fuel fouled. Pinch off the air injection to see how rich it really [...] there is too much CO the cat will never [...] it could be lit and wor... Login to read more.