Throttle sensors for Toyota automatic transmission
1. Throttle Position Sensor (TPS)
* Determines the position of the throttle valve relative to the position of the accelerator pedal.
* Provides information for calculating fuel delivery, ignition timing and gear shifting.
2. Idle Speed Sensor (ISC)
* Controls the air bypass to maintain engine speed at idle.
* Provides information for regulating idle speed.
3. Throttle Acceleration Sensor (APS)
* Detects changes in throttle position over a period of time.
* Provides information to calculate optimal fuel delivery and gear shifting.
4. Throttle Angle Sensor (TAS)
* Determines the throttle opening angle.
* Used to calculate fuel delivery and gear shifting.
5. Manifold Pressure (MAP) Sensor
* Measures the pressure in the intake manifold.
* Provides information for calculating fuel delivery and ignition timing.
Common problems with throttle sensors for Toyota automatic transmissions:
* Incorrect readings leading to performance issues
* Fluctuations in idle speed
* Problems with gear shifting
* Fuel supply problems
* Malfunction Indicator Light (MIL) Illuminates
Maintenance Tips:
* Clean the throttle body and sensors regularly
* Periodically check the functionality of the sensors using a diagnostic scanner
* Replace sensors as needed to ensure optimal performance