Hyundai Elantra: Engine Control System / 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.

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. Specification : Refer to "Specification" Removal 1. Turn the ignition swi ...

Injector Specifications
Specification ItemSpecificationCoil Resistance (?)13.8 ~ 15.2 [20°C(68°F)] ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Drive Belt Repair procedures
Removal 1. Remove the drive belt. (1) Using the wrench, turning the drive belt tensioner (A) counterclockwise. (2) Disconnect the drive belt (A). (3) Remove the drive belt tensioner (A) and then remove the drive belt (B). Inspection 1. Check belt for maintenance and abnormal wea ...

Hyundai Elantra AD (2016-2020) Service Manual: Sunroof Switch Repair procedures
Inspection 1. Disconnect the negative (-) battery terminal. 2. Open the sunglass case cover from the overhead console and remove the 2 screws holding the overhead console. Disconnect the switch connector and Map lamp connector, and then remove the overhead console lamp (A). 3. Chec ...

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