Electronic Engine Control Sensors

Air Flow Sensor
Intake Air Temperature Sensor
Throttle Valve Position Sensor
Manifold Absolute Pressure Sensor
Engine Coolant Temperature Sensor
Knock Sensor
Crankshaft Position Sensor
Camshaft Position Sensor
O2-Sensor

Actuators

Idle Air Control Valve
Evaporative Emission Control System Purge Valve
Exhaust Gas Recirculation Valve
Fuel Injector
Continuous Variable Valve Timing
Fuel Pump

Ignition Systems

Distributor Ignition
Distributorless Ignition System
Coil-On-Plug Ignition System

Complex Engine Diagnostics

CSS script
Px script
ElPower script
CKP-CMP synchronization

Knock Sensor

The knock sensor monitors the combustion process in the engine. Its signal helps the engine control unit prevent knocking combustion, thereby protecting the mechanical components of the engine.

Knock sensor location
Typical location of the knock sensor
Knock sensor connection
Connection of the USB Autoscope IV to the sensor signal wire
KS-mode
Setting the USB Autoscope IV to 1-channel mode
Waveform of knock sensor
Output voltage waveform of the knock sensor in good condition on Mitsubishi Chariot 4G64, recorded while the engine was at idle

Waveform examples

The USB Oscilloscope program is required for waveform playback
Knock Sensor