19th Annual Technical Forum: Exhaust
How can you tell when a catalytic converter needs to be replaced?

19th Annual Technical Forum: Oxygen Sensors
What are Air/Fuel sensors, and how do they differ from ordinary Oxygen Sensors?
Technical Sales Skills: Opportunities Abound For Replacement O2 Sensor Sales
Read up on essential products in our annual technical sales seminar section. We review 12 products you need to know better to move products. Brakes Fuel Pumps Gaskets Batteries Wipers Catalytic Converters Shocks Engine Management Lighting Belts and Hoses Oxygen Sensors Antifreeze Oxygen sensors are one of the most commonly replaced engine sensors. A
Technical Sales Skills: A Catalytic Converter Is A Vehicle’s Most Important Emissions Component
The catalytic converter is probably the most important emission control device on a vehicle because it cleans up the pollutants in the exhaust.

ASE PS2 Test Preparation Guide: Emission Control Systems
Emission control systems include the engine management system (PCM and sensors), Positive Crankcase Ventilation (PCV) system, Exhaust Gas Recirculation (EGR), the Evaporative Emission Control System (EVAP) and catalytic converter.
I have a 1993 Toyota Tercel 4-speed manual, basic package, in other words, no A/C or power steering. It had started shuddering and acting as if there wasn’t enough fuel getting to the engine. I’ve had a recent tune-up.
I have a 1993 Toyota Tercel 4-speed manual, basic package, in other words, no A/C or power steering. It had started shuddering and acting as if there wasn’t enough fuel getting to the engine. I’ve had a recent tune-up. Any ideas other than a fuel pump or filter problem that could cause this to happen?
I have a ‘94 Chevy S10 Blazer, VIN code W. It starts to lope if I let it idle for a while. I put a new spider and checked for any leaks. Any help would be nice. Thank you!
I have a ‘94 Chevy S10 Blazer, VIN code W. It starts to lope if I let it idle for a while. I put a new spider and checked for any leaks. Any help would be nice. Thank you!
Emissions, Hybrids And Diesels: The Rules Keep Changing
Emission regulations have always been one of the major driving forces behind new vehicle technology.
Technical Forum: When should an oxygen sensor be replaced?
Counterman magazine presents 11 technical and sales topics in an easy-to-read question-and-answer format.
Catalytic Converter and Oxygen Sensor Issues
Separating fact from fiction can be a daunting task for any parts professional. To illustrate, many DIYers and professional mechanics might believe that changing an oxygen sensor will turn off the “check engine” light on a vehicle with a defective catalytic converter.
Oxygen Sensors Are Key To Performance, Fuel Economy
Oxygen sensors have been used for more than a quarter of a century, dating back to 1980 when the first computerized engine control systems appeared.
ASE P2 Test Preparation Guide: Emissions
ASE P2 Test Preparation Guide: Emissions