The knock sensor is a piezoelectric accelerometer that acts as a microphone on the engine. It converts vibrations into alternating current (AC) signal. When the crystal inside the sensor is vibrated, it produces an AC voltage.
The greater the vibration or shock, the higher the voltage and frequency. In this video we discuss how a knock sensor can fail, testing and diagnostics.
This video is sponsored by NGK and NTK.
Calibrations can be done accurately on a front-facing camera with the Hunter ADASLink diagnostic scan tool.
Windshield repair isn’t as simple as it used to be, since today new glass also requires new ADAS calibrations.
Joe Keene demonstrates how such calibrations can be done accurately and efficiently on a front-facing camera with the Hunter ADASLink diagnostic scan tool and the DAS 3000 static fixture. Wheel clamps and a target board are used to ensure the lane departure warning camera on VW and Audi vehicles is precisely and quickly calibrated, with special attention on suspension level control and correctly measuring the ride height.
Maximize your diagnostics with readiness monitors.
Use the correct tool to measure the effective belt length at the cord line. This video is sponsored by Continental.
Joe Keene discusses how to calibrate the surround view system on a VW/Audi vehicle.
Follow along as Joe unboxes the OEM replacement mass airflow sensor. This video is sponsored by United Motor Products.
Spark plugs have changed over the years.
Understanding why plugs get dirty.
Here are some tips to follow when replacing a spark plug.
Most articles will tell you to use a torque wrench, but they never explain why.
