× 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: o2 heater won't run
Posted to Emissions Forum on 9/11/2025

Yes, the 2010 test was two speed idle, but the test done this year is ois.

Got a v.i.n.?

The reason I am adamant for the v.i.n. is this will tell me if it is CA or FED emissions.

What I think is happening is that this is a federal emissions truck, but th... Login to read more.