DTC Detection Logic

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0087

LOW FUEL PRES

(Fuel rail/system pressure - too low)

A

Diagnosis condition

• Engine running
• Engine coolant temperature: -12 deg. C (10.4 deg. F) to 40 deg. C (104 deg. F)

Signal (terminal)

Fuel rail pressure Sensor signal

Threshold

Fuel rail pressure does not reach 4.0 MPa (40.8 kg/cm ² , 580 psi)

Diagnosis delay time

--

B

Diagnosis condition

• Engine running at idle
• Engine coolant temperature: -12 deg. C (10.4 deg. F) to 40 deg. C (104 deg. F)

Signal (terminal)

Fuel rail pressure Sensor signal

Threshold

Fuel rail pressure remains at 7.5 MPa (76.5 kg/cm ² , 1087.5 psi) or less

Diagnosis delay time

1 second or more

C

Diagnosis condition

Engine running (regardless of water temperature)

Signal (terminal)

Fuel rail pressure Sensor signal

Threshold

Target fuel pressure - Actual fuel pressure = 2.7 MPa (27.5 kg/cm ² , 392 psi) or less

Diagnosis delay time

5 seconds or more