Hyundai Santa Fe (TM): Engine Control System / Accelerator Position Sensor (APS). Repair procedures

Inspection
1.
Connect the diagnostic tool on the Data Link Connector (DLC).
2.
Turn the ignition switch ON.
3.
Measure the output voltage of the APS 1 and 2 at C.T and W.O.T.
Accelerator Position
Output Voltage (V) [Vref=5V]
APS 1
APS 2
C.T
0.7 - 0.8
0.33 - 0.43
W.O.T
3.98 - 4.35
1.93 - 2.18

Removal
1.
Turn the ignition switch OFF and disconnect the battery (-) terminal.
2.
Disconnect the accelerator position snesor connector (A).

3.
Disconnect the mounting cap (A).

4.
Remove the accelerator pedal module from the vehicle after loosening the mounting bolt (A).
Tightening Torque :
8.8 - 13.7 N.m (0.9 - 1.4 kgf.m, 6.5 - 10.1 lb.ft)

Installation
1.
Install in the reverse order of removal.

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    Description Based on information from various sensors, the ECM can calculate the fuel amount to be injected. The fuel injector is a solenoid-operated valve and the fuel injection amount is controlled by length of injection time.

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    Description The compressor is the power unit of the A/C system. It is located on the side of engine block and driven by a V-belt of the engine. The compressor changes low pressure and low temperature refrigerant gas into high pressure and high temperature refrigerant gas.

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