DTC P0092:00

Fuel pressure regulator control circuit high input

DETECTION CONDITION

• When the PCM turns the spill valve control solenoid valve on but the spill valve control solenoid valve circuit voltage is high for 5 s, the PCM determines that the spill valve control solenoid valve control circuit has a malfunction.

MONITORING CONDITIONS

• The following conditions are met:

• Engine speed: 5,700 rpm or less

• Battery voltage: 10.5 V or more

Diagnostic support note

• This is a continuous monitor (CCM).

• The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.

• FREEZE FRAME DATA (Mode 2)/Snapshot data is available.

• DTC is stored in the PCM memory.

FAIL-SAFE FUNCTION

• Stops high pressure fuel pump control

• Limits intake air amount

POSSIBLE CAUSE

• High pressure fuel pump connector or terminals malfunction

• PCM connector or terminals malfunction

• Short to power supply in wiring harness between high pressure fuel pump terminal B and PCM terminal 1EF

• Spill valve control solenoid valve (built-into high pressure fuel pump) malfunction

• PCM malfunction

Item (definition)

Unit/Condition

Definition

Condition/Specification (Reference)

FUEL_PRES

KPa {MPa}, mBar {Bar}, psi, in H20

Fuel pressure

• Displays fuel pressure

V

• Fuel pressure is 3.0 MPa {31 kgf/cm², 435 psi}: Approx. 0.92 V

• Fuel pressure is 4.8 MPa {49 kgf/cm², 696 psi}: Approx. 1.17 V

LOAD

%

Engine load

• Idle (after warm up): Approx. 17.64%

• Racing (engine speed is 2,000 rpm): Approx. 14.51%

• Racing (engine speed is 4,000 rpm): Approx. 21.17%

RPM

RPM

Engine speed

• Displays engine speed

STEP

INSPECTION

ACTION

1

• Has the FREEZE FRAME DATA (Mode 2)/snapshot data been recorded?

Yes

Go to the next step.

No

Record the FREEZE FRAME DATA (Mode 2)/snapshot data on the repair order, then go to the next step.

2

• Verify related Service Bulletins and/or on-line repair information availability.

• Is any related repair information available?

Yes

Perform repair or diagnosis according to the available repair information.

• If the vehicle is not repaired, go to the next step.

No

Go to the next step.

3

• Switch the ignition off.

• Disconnect the high pressure fuel pump connector.

• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).

• Is there any malfunction?

Yes

Repair or replace the connector and/or terminals, then go to Step 7.

No

Go to the next step.

4

• Disconnect the PCM connector.

• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).

• Is there any malfunction?

Yes

Repair or replace the connector and/or terminals, then go to Step 7.

No

Go to the next step.

5

• Verify that the high pressure fuel pump and PCM connectors are disconnected.

• Switch the ignition ON (engine off).

  NOTE:

  • Another DTC may be stored by the PCM detecting an open circuit.

• Measure the voltage at the high pressure fuel pump terminal B (wiring harness-side).

• Is the voltage 0 V?

Yes

Go to the next step.

No

Refer to the wiring diagram and verify whether or not there is a common connector between high pressure fuel pump terminal B and PCM terminal 1EF.

If there is a common connector:

• Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply.

• Repair or replace the malfunctioning part.

If there is no common connector:

• Repair or replace the wiring harness which has a short to power supply.

Go to Step 7.

6

• Switch the ignition off.

• Reconnect all disconnected connectors.

• Inspect the spill valve control solenoid valve.

  (See HIGH PRESSURE FUEL PUMP INSPECTION [SKYACTIV-G 2.5].)

• Is there any malfunction?

Yes

Replace the high pressure fuel pump, then go to the next step.

(See HIGH PRESSURE FUEL PUMP REMOVAL/INSTALLATION [SKYACTIV-G 2.5].)

No

Go to the next step.

7

• Always reconnect all disconnected connectors.

• Clear the DTC from the PCM memory using the M-MDS.

  (See AFTER REPAIR PROCEDURE [SKYACTIV-G 2.5].)

• Start the engine.

• Perform the KOEO or KOER self test.

  (See KOEO/KOER SELF TEST [SKYACTIV-G 2.5].)

• Is the same DTC present?

Yes

Repeat the inspection from Step 1.

• If the malfunction recurs, replace the PCM.

  (See PCM REMOVAL/INSTALLATION [SKYACTIV-G 2.5].)

Go to the next step.

No

Go to the next step.

8

• Perform the “AFTER REPAIR PROCEDURE”.

  (See AFTER REPAIR PROCEDURE [SKYACTIV-G 2.5].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [SKYACTIV-G 2.5].)

No

DTC troubleshooting completed.