EGR Archives - Tomorrows Technician
EGR Systems: Understanding Exhaust Gas Recirculation

Learn how it works, its history, and its impact on both performance and the environment.

Chasing The Perfect Combustion Event

The perfect internal combustion engine would put the exact amount of fuel and air into the combustion chamber.

Exhaust Gas Recirculation Operation and Diagnostics

Since exhaust gas does not burn, this lowers the combustion temperatures and reduces NOx emissions from the engine.

VIDEO: Why Do Diesel Engines Need EGR?

Doug Kaufman discusses diesel engines and why even modern engines need an EGR system.

Ignition and EGR Testing Tip Clip

Using scope patterns, Jim Wilson discusses and demonstrates a procedure for diagnosing EGR related misfire issues by examining scope patterns of the different cylinders.