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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 485 (Engine Control System (VK56VD) DTC/Circuit Diagnosis (1 Of 6)) >> DTC/Circuit Diagnosis >> DTC P0088: FRP Control System >> DTC Description >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD and 2019 Nissan NV2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0088

HIGH FUEL PRES

(High fuel pressure too high)

1

Diagnosis condition

Engine idle condition after cold start [water temperature 5 deg.C (41 deg.F) - 40 deg.C (104 deg.F)]

Signal (terminal)

Fuel rail pressure signal

Threshold

Fuel rail pressure remains at more than 16.5 MPa (165 bar, 168.3 kg/cm 2 , 2392.5 psi)

Diagnosis delay time

1 second or more

2

Diagnosis condition

After engine start (regardless of water temperature)

Signal (terminal)

Fuel rail pressure signal

Threshold

Actual fuel pressure - Target fuel pressure ? 2.7 MPa (27 bar, 27.5 kg/cm 2 , 392 psi)

Diagnosis delay time

5 seconds or more