Hyundai Palisade (LX2): Engine Control System / Fuel Pressure Control Valve (FPCV)
Description and operation
Installed on the high pressure fuel pump, the Fuel Pressure Regulator Valve
controls the fuel amount flowing into the injectors in accordance with the ECM
signal calculated based on various engine conditions.
Specifications
Item
|
Specification
|
Coil Resistance (Ω)
|
0.39 - 0.43 [20°C (68°F)]
|
Troubleshooting
Idle rail pressure regulator waveform
Schematic diagrams
Harness Connector
Repair procedures
| 1. |
Switch "OFF" the ignition and disconnect the negative (-) battery terminal.
|
| 2. |
Disconnect the fuel pressure regulator valve connector.
|
| 3. |
Measure resistance between the fuel pressure regulator valve terminals
1 and 2.
|
| 4. |
Check that the resistance is within the specification.
|
Specification : 0.39 - 0.43Ω [20°C (68°F)]
|
|
| • |
The fuel pressure regulator valve cannot be replaced as a unit.
Replace it as high pressure fuel pump assembly.
(Refer to Fuel Delivery System - "High Pressure Fuel Pump")
|
|
| • |
The fuel pressure regulator valve cannot be replaced as a unit.
Replace it as high pressure fuel pump assembly.
(Refer to Fuel Delivery System - "High Pressure Fuel Pump")
|
|
Description and operation
Description
Installed on the intake manifold (VIS Valve 1) and the surge tank (VIS Valve
2), the Variable Intake manifold Solenoid (VIS) valves 1 and 2 control the vacuum
modulators, which activate the valves in the intake manifold and the surge tank.
Other information:
Repair procedures
Inspection
1.
Connect the battery voltage and check the blower motor rotation.
2.
If the blower motor does not operate well, substitute with a known-good
blower motor and check for proper operation.
Inspection
1.
Turn the ignition switch ON.
2.
Manually operate the control switch and measure the voltage of the blower
motor.
3.
Select the control switch to raise the voltage until it reaches high
speed.
