Hyundai Tucson: Engine Control System / 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.
Condition
Output Voltage (V)
Idle
 Approx. 1.2
1,500 rpm
2.2 ~ 2.5
6,300 rpm
 Approx. 3.0

Removal
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.
Release the residual pressure in fuel line.
(Refer to the Fuel Delivery System - "Release Residual Pressure in Fuel Line")
   
When removing the fuel pump relay, a Diagnostic Trouble Code (DTC) may occur. Delete the code with the GDS after completion of “Release Residual Pressure in Fuel Line” work.
3.
Remove the intake manifold.
(Refer to Engine Mechanical System - “Intake And Exhaust System”)
4.
Remove the injector foam (A).

5.
Disconnect the rail pressure sensor connector (A), and then remove the sensor (B) from the delivery pipe.

Installation
   
Install the component with the specified torques.
Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing.
1.
Install in the reverse order of removal.

Rail Pressure Sensor Installation:
30.0 ~ 35.0 N.m (3.0 ~ 3.6 kgf.m, 22.1 ~ 25.8 lb-ft)

Rail Pressure Sensor (RPS) Schematic Diagrams
Circuit Diagram (M/T) (A/T) ...

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 ...

Other information:

Hyundai Tucson (LM) 2010-2015 Owners Manual: Engine oil pressure warning light
This warning light indicates the engine oil pressure is low. If the warning light illuminates while driving: 1. Drive safely to the side of the road, park and turn the engine off. 2. Allow the vehicle to sit for five minutes, then check the engine oil level. If the level is low, add oil as re ...

Hyundai Tucson (LM) 2010-2015 Owners Manual: Connecting an External Device
External audio players (Camcorders, car VCR, etc.) can be played through a dedicated cable. ✽ NOTICE If an external device connector is connected with the AUX terminal, then AUX mode will automatically operate. Once the connector is disconnected, the previous mode will be restored. ...

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