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The throttle position sensor moves with the throttle and sends a voltage signal to the computer indicating throttle angle and speed of movement data. The computer uses this data to … Continue Reading What does a Throttle Position Sensor do for your vehicle?
A yaw rate sensor (or rotational speed sensor) measures a vehicle’s angular velocity about its vertical axis in degrees or radians per second in order to determine the orientation of … Continue Reading What does a Yaw Rate Sensor do for your vehicle?
The MAP sensor converts engine vacuum/manifold pressure to an electrical signal so the computer knows how much load the engine is under. This data is the basis for fuel delivery … Continue Reading What does a MAP Sensor do for your vehicle?
The EGR position sensor detects the movement and position of the exhaust gas recirculation (EGR) valve pintle. The EGR pressure sensor detects exhaust gas flow through the EGR passage. Where … Continue Reading What does an EGR Position Sensor do for your engine?
The camshaft synchronizer assembly consists of a camshaft position sensor mounted on an oil pump intermediate shaft. The synchronizer is driven off the camshaft, and sends the camshaft rotational position … Continue Reading What does a Camshaft Synchronizer Assembly do for your engine?
If you’re experiencing any of these seven symptoms of a bad mass air flow sensor, it’s worth taking a look in your engine bay to diagnose the problem.
The accelerator pedal sensor (APS) indicates the position of the accelerator on vehicle models with electronic throttle control. The APS is basically a throttle position sensor (TPS) with a pedal … Continue Reading What does an Accelerator Pedal Sensor do for your vehicle?
The vehicle speed sensor or VSS measures transmission/transaxle output or wheel speed. The engine control module (ECM) uses this information to modify engine functions such as ignition timing, air/fuel ratio, … Continue Reading Velocity Check: What does a Vehicle Speed Sensor do?
The knock sensor creates a voltage signal based on the vibrations caused by engine detonation. The computer uses this signal to retard timing when spark knock occurs. Where are these … Continue Reading Combustion Control: What does a Knock Sensor do?
The Air Charge / Manifold Temperature sensor is used by the computer to measure air density for fuel mixture control. The computer uses this information to trim the air/fuel ratio … Continue Reading What does an Air Charge / Manifold Temperature Sensor do?