× 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: Is approx 1% co in front of the cat too much?
Posted to Emissions Forum on 11/4/2000 1 Reply

[...trimmed text...]

I havent done ALOT of pre-cat testing(For obvious reasons of simplicity).

My question would be what is NORMAL for PRE-CAT? My general guesstimates from say 20-40 cars tested with test pipe or drille... Login to read more.

1 Replies Received (View Replies)