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Home >> Infiniti >> 2024 >> Q50 Luxe, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (1 Of 7) >> Engine (ECM) >> P0087 FRP Control System >> DTC Description
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DTC Description

DTC DETECTION LOGIC 

NOTE: DTC P0087 may be displayed when running out of gas or air accumulation.
DTC No. CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P0087 LOW FUEL PRES
(High fuel pressure too low)
  • Fuel rail pressure does not reach 4.0 MPa (40.8 kg/cm2, 580 psi) at engine cold start [water temperature -12°C (10.4°F) - 40°C (104°F)].
  • Fuel rail pressure remains at 7.5 MPa (76.5 kg/cm2, 1087.5 psi) or less for 1 second or more during engine idle condition after cold start [water temperature -12°C (10.4°F) - 40°C (104°F)].
  • The following condition continues for 5 seconds or more after engine start (regardless of water temperature): Target fuel pressure - Actual fuel pressure = 2.7 MPa (27.5 kg/cm2, 392 psi) or less.

POSSIBLE CAUSE 

FAIL-SAFE 

Fail safe mode Vehicle behavior
Traveling control mode ECM controls the accelerator pedal depression speed to make it slower than actual speed. This causes a drop in accelerating performance and encourages the driver to repair malfunction.
NOTE: ECM does not control the accelerator pedal releasing speed.
Device fix mode
  • Fixes electric intake valve timing control motor in the reference position.
  • Fixes exhaust valve timing control solenoid valve in the reference position.
Combustion control mode No stratified charge combustion at starting (cold start).
Fail safe mode Vehicle behavior
Traveling control mode ECM controls the accelerator pedal depression speed to make it slower than actual speed. This causes a drop in accelerating performance and encourages the driver to repair malfunction.
NOTE: ECM does not control the accelerator pedal releasing speed.
Combustion control mode No stratified charge combustion at starting (cold start).