Hyundai Palisade (LX2): Engine Control System / Injector

Hyundai Palisade (LX2) 2020-2026 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 reach the peak, and then settle at system voltage.

Hyundai Palisade. Description and operation

Specifications

Specification

Item	Specification
Coil Resistance (Ω)	1.30 - 1.44 [20°C (68°F)]
Fuel pressure [kPa (bar, kgf/cm)]	2000 - 19907 (20 - 200, 20.4 - 203)
Operation Voltage (V)	6 - 16
pin	2

Troubleshooting

Signal Waveform

Hyundai Palisade. Troubleshooting

Schematic diagrams

Circuit Diagram

Hyundai Palisade. Schematic diagrams

Harness Connector

Hyundai Palisade. Schematic diagrams

❮Accelerator Position Sensor (APS)

Description and operation Description Installed on the accelerator pedal module, the Accelerator Position Sensor (APS) detects the rotation angle of the accelerator pedal.

Purge Control Solenoid Valve (PCSV)❯

Description and operation Description Installed on the intake manifold, the Purge Control Solenoid Valve (PCSV) controls the evaporative purge between the canister and the intake manifold.

Other information:

Hyundai Palisade (LX2) 2020-2026 Service Manual: Compressor oil

Repair procedures Oil Specification 1. The R-134a or R-1234yf system requires synthetic (PAG) compressor oil whereas the R-12 system requires mineral compressor oil. The two oils must never be mixed. 2.