Hyundai Elantra: Engine Control System / Injector Description and Operation

Hyundai Elantra AD (2016-2020) Service Manual / Engine Control/Fuel System / 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) Owners Manual: In Case of an Emergency While Driving
If the Engine Stalls While Driving Reduce your speed gradually, keeping a straight line. Move cautiously off the road to a safe place. Turn on your hazard warning flasher. Try to start the engine again. If your vehicle will not start, contact an authorized HYUNDAI dealer or seek other ...

Hyundai Elantra AD (2016-2020) Service Manual: Repair procedures
Compression Pressure Inspection • If the there is lack of power, excessive oil consumption or poor fuel economy, measure the compression pressure. 1. Warm up and stop engine. Allow the engine to warm up to normal operating temperature. 2. Disconnect the injec ...