Air Filters and Fuel Trims
Modern engines rely on precise airflow and oxygen sensor data for optimal performance.
Understanding Fuel Trims
The fuel trims are what govern what’s going on inside the engine. This video is sponsored by Auto Value and Bumper to Bumper.
Fuel System Diagnostics Is All In The Fuel Trim Numbers
With lean-burn operating strategies being built into many of today’s gasoline direct-injection and gasoline compression ignition engines, it’s important to build a foundational knowledge of how fuel trims work in the real world.
Fuel Trims!
Understanding fuel trims is the gateway to diagnosing common emissions problems. However, before we begin to use this information, specific criteria must be met in order for the PCM to gather accurate information.
