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:
Limitation of Active ECO operation
If the following conditions occur while Active ECO is operating, the system operation
is limited even though there is no change in the ECO indicator.
When the coolant temperature is low: The sys ...
Anti-lock brake system (ABS)
WARNING
ABS (or ESC) will not prevent accidents due to improper or dangerous driving
maneuvers. Even though vehicle control is improved during emergency braking, always
maintain a safe distance b ...
Troubleshooting
Troubleshooting
Symptom
Suspect Area
Remedy (Refer to page)
Water leaks from sunroof
Deteriorated roof lid weatherstrip
Rep ...
