× 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: 87 Lincoln MK VII.... When does it divert air to heads?
Posted to Emissions Forum on 11/4/1998 4 Replies

Hello, Bill!

[...trimmed text...]

If your CO is at 0.75 with 2500RPM and the 2 O2 sensors are switching nicely, then the cat is bad. However, you can check precat-emission on this car quite easy, remove the down-stream ... Login to read more.

4 Replies Received (View Replies)