Hyundai Sonata: Engine Control System / Accelerator Position Sensor (APS) Description and Operation

Hyundai Sonata LF 2014-2019 Service Manual / Engine Control / Fuel System / Engine Control System / Accelerator Position Sensor (APS) Description and Operation

Description

Accelerator Position Sensor (APS) is installed on the accelerator pedal module and detects the rotation angle of the accelerator pedal. The APS is one of the most important sensors in engine control system, so it consists of the two sensors which adapt individual sensor power and ground line. The second sensor monitors the first sensor and its output voltage is half of the first one. If the ratio of the sensor 1 and 2 is out of the range (approximately 1/2), the diagnostic system judges that it is abnormal.

Rail Pressure Sensor (RPS) Repair procedures

Inspection 1. Connect the GDS on the Data Link Connector (DLC). 2. Measure the output voltage of the RPS at idle and various engine speed. ConditionOutput Voltage (V)Idle Approx. 1.21, ...

Accelerator Position Sensor (APS) Specifications

Specification AcceleratorPositionOutput Voltage (V)APS1APS2C.T0.7 ~ 0.80.29 ~ 0.46W.O.T3.85 ~ 4.351.93 ~ 2.18 ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Muffler Repair procedures
Removal and Installation Front Muffler 1. Disconnect the battery negative terminal. 2. Disconnect the rear oxygen sensor connector (A). 3. Remove the front muffler (A). Tightening torque: 39.2 ~ 58.8 N.m (4.0 ~ 6.0 kgf.m, 28.9 ~ 43.4 lb-ft) 4. Install in the reverse order of ...

Hyundai Sonata LF 2014-2019 Service Manual: Oil Pump Repair procedures
Removal and Installation 1. Remove the timing chain cover. (Refer to Timing System - "Timing Chain Cover") 2. Remove the pump cover (A). Tightening torque : 8.8 ~ 13.7N.m (0.9 ~ 1.4kgf.m, 6.5 ~ 10.1 lb-ft) 3. Remove the inner rotor (B) and outer rotor (C). 4. Install in the re ...