Kia Optima: 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.
Installation
1.
Installation is reverse of removal.
...
Accelerator Position Sensor (APS). Specifications
Specification
Accelerator
Position
Output Voltage (V)
APS1
APS2
C.T
0.7 ~ 0.8
0.29 ~ 0.46
...
See also:
If engine turns over normally but
does not start
1. Check fuel level.
2. With the ignition switch in the LOCK
position, check all connectors at the
ignition coil and spark plugs.
Reconnect any that may be disconnected
or loose.
3. Check th ...
Removal
1.
Remove the timing chain. (Refer
to Timing system in this group)
2.
Install a stopper pin (A) after
compressing the balance shaft chain tensioner.
3.
...
Removal
Passenger Compartment Junction Box (SJB)
1.
Disconnect the negative(-) battery
terminal.
2.
Remove the crash pad lower panel
(A).(Refer to the BD group - "Crash p ...
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