Diesel diagnostics

Pressure sensing Beru glow plugs
Cam Crank Correlation on a Nissan YD22ETI

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
Vehicle Speed 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

Software

How to install Flash Player
How to generate formula
Software updates

Intake Air Temperature Sensor

Temperature sensor is temperature sensitive semiconductor resistor, which usually has negative temperature coefficient (NTC), meaning that the resistance goes down with increasing temperature. The opposite type – positive (PTC) is very rare.

IAT
Intake air temperature sensor

Application:

  • Engine coolant temperature sensor
  • Air temperature sensor
  • Oil temperature sensor
  • Fuel temperature sensor
Typical location of the intake air temperature sensor
Typical location of the intake air temperature sensor
Setting the USB Autoscope IV to the temperature sensor testing mode
Setting the USB Autoscope IV to the temperature sensor testing mode.
Output voltage waveform from the intake air temperature sensor in good condition
Output voltage waveform from the intake air temperature sensor in good condition on Toyota Avensis 1.8i 2007, recorded while the engine was at idle.
Intake air temperature sensor KIA Ceed 1.6
Output voltage waveform from a properly functioning intake air temperature sensor on KIA Ceed 1.6 2013
IAT Toyota Avensis 1.8i waveform
Output voltage waveform from a properly functioning intake air temperature sensor on Toyota Avensis 1.8i 2007
Fuel temperature sensor waveform
Output voltage waveform from a properly functioning fuel temperature sensor of diesel engine

Video

Waveform examples

The USB Oscilloscope program is required for waveform playback
Intake Air Temperature sensor - Toyota Avensis 1.8i 2007
Intake Air Temperature sensor - KIA Ceed 1.6 2013