Hyundai Sonata: Injector. Description and Operation
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. The ECM controls
each injector by grounding the control circuit. When the ECM energizes the injector
by grounding the control circuit, the circuit voltage should be low (theoretically
0V) and the fuel is injected. When the ECM de-energizes the injector by opening
control circuit, the fuel injector is closed and circuit voltage should momentarily
peak, and then settle at system voltage.

Fuel Tank Pressure Sensor (FTPS). Repair procedures
Inspection
1.
Connect the GDS on the Data Link Connector (DLC).
2.
Measure the output voltage of the FTPS.
Specifica ...
Injector. Specifications
Specification
Item
Specification
Coil Resistance (Ω)
1.18 ~ 1.31 [20°C(68°F)]
...
See also:
ESC OFF Switch. Repair procedures
Inspection
1.
Turn ignition switch OFF and disconnect the negative (-) battery
cable.
2.
Remove the crash pad side switch assembly.
...
Air conditioning
Press the A/C button to turn the air conditioning system on (indicator light
will illuminate). Press the button again to turn the air conditioning system off. ...
Interior light bulb replacement
1. Using a flat-blade screwdriver, gently pry the lens from the interior light
housing.
2. Remove the bulb by pulling it straight out.
WARNING
Prior to working on the Interior Lights, ensure th ...
