× 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: im 240 drive cycle
Posted to Technical Theory Forum on 10/24/2023

That's my question. If he's got an early 2000's Ford heavy duty truck they don't run the monitors, they are ODB1, but he says:

car that will not run o2 and heater test yet passes cat.

A little (LOT) more info would be helpful for sure.... Login to read more.