DTC Troubleshooting: P0088(3.0L Engine): Inspection

Fuel Rail Pressure Sensor Inspection (1)

Test Procedure

Procedure
- Start the engine.
- Hold the engine speed at 3, 000 rpm without load (in P or N) until the radiator fan comes on, then let it idle.
- Shift the transmission to D position/mode while pressing the brake pedal firmly, then press the accelerator pedal.
  NOTE: Do not shift the transmission or remove your foot off the brake pedal, while raising the engine speed.
- Compare the HDS [Fuel Pressure Converted From PF Sensor] and the [Fuel Pressure Direct Injection System].

Normal Conditions
- The HDS [Fuel Pressure Converted From PF Sensor] and the [Fuel Pressure Direct Injection System] values are almost same.

Results

Fuel Rail Pressure Sensor Inspection (2)

Test Procedure

Procedure
- Start the engine, and let it idle until it stalls.
- After the engine stalls, crank the engine for several times.
- Confirm the HDS [Fuel Pressure Converted From PF Sensor].

Normal Conditions
- The HDS [Fuel Pressure Converted From PF Sensor] value is less than 1, 000 kPa .
  NOTE: It is normal if the value of several hundred kPa is indicated.

Results

High Pressure Fuel Pump Inspection

Preconditions

Test Procedure

Procedure
- Start the engine.
- Hold the engine speed at 3, 000 rpm without load (in P or N) until the radiator fan comes on, then let it idle.
- Shift the transmission to D position/mode while pressing the brake pedal firmly, then press the accelerator pedal.
  NOTE: Do not shift the transmission or remove your foot off the brake pedal, while raising the engine speed.
- Confirm the HDS [Relief Valve].

Results