× 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 in open loop?
Posted to Technical Theory Forum on 10/12/2009 10 Replies

You can drive it or start it up and run it at 3000 rpm for 10 minutes drop the engine speed to idle and put it in drive. Sit there for a minute in drive and it should force the monitor to run. If you grab a snapshot be sure to start recording before you take t... Login to read more.

10 Replies Received (View Replies)