VIDEO: What Is Oxygen Sensor Switching?
In this Tech Minute, editor Andrew Markel discusses oxygen sensors and fuel injection engines.
Oxygen Sensor And Catalyst Efficiency
The catalyst efficiency monitor verifies the catalytic converter is operating at a high enough efficiency rating to keep exhaust emissions within the predetermined values. The PCM compares the signals from the upstream and downstream oxygen sensors to determine the state of the converter. These “tests” are called the readiness monitors.
VIDEO: Slow Oxygen Sensor Preventing Secondary Air Monitor Reset
Andrew Markel explains how a non-resetting secondary air monitor required the use of crowd-sourced repair information when techs were led down a rabbit hole.
VIDEO: Oxygen Sensor Operation Modes
Andrew Markel explains the difference between closed and open loop operations, and which is more efficient.
VIDEO: Thimbal And Planar Oxygen Sensors
Andrew Markel goes over the composition of two types of oxygen sensors with a brief history into each.
VIDEO: Slow Or Lazy Oxygen Sensor Maintenance
Andrew Markel explains how coolant leaks and oil consumption can lead to a slow, lazy, or dead oxygen sensor.
Aging Oxygen Sensors Hurt Fuel Economy, Performance And Emissions
Oxygen sensors are used to monitor the engine’s air/fuel mixture so the powertrain control module (PCM) can make adjustments that optimize fuel economy, emissions and performance.
Adapting Sensors For Changing Inputs
Let’s focus our attention today on one small facet of the technology inside modern vehicles: Adaptations.
Mass Air Flow Sensor Cleaners
What can you do both for maintenance and for service and diagnostics to confirm a mass airflow sensors functioning properly? Andrew Markel shares the secret in this video sponsored by Auto Value and Bumper to Bumper.
ASE Test Prep: What Computer Sensor Needs Replaced? (VIDEO)
A defective head gasket could mean a computer sensor needs replaced. This video is sponsored by Autolite.
