Engine Diagnostics Archives - Tomorrows Technician
Verifying Boost Pressure Diagnostics

The best way to discover if an engine controls the boost pressure is the actual data PIDs for boost on a scan tool.

Runners And Ports: How Modern Engines Manage Air

Variable-length intake runners change the length of the intake passages depending on engine speed and load.

VIDEO: Diagnosing Intermittent Fuel Pressure Issues

Andrew Markel discusses fuel pressure, and the different ways to diagnose issues without using a pressure gauge.