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Home >> Genesis >> 2019 >> G70 3.3T Dynamic, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 32 (Engine Control System Diagnosis - 2.0L (1 Of 4)) >> DTC P0088-00: Fuel Rail/System Pressure Too High >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

WARNING: This page is about a different variant/trim than selected.
Item Detecting Condition Possible cause
Main Action
  • Check fuel rail/system pressure
  1. Poor fuel return
  2. Rail pressure sensor stick at high value
Case 1 Prerequisite condition
  • Engine speed is higher than 512 rpm.
Threshold value
  • Filtered fuel pressure is higher than 27.9MPa.
Case 2 Prerequisite condition
  • No additional warm-up fueling is activated (ECT is sufficiently higher than 73°C/163.4°F).
  • Full load, catalyst purge and leakage detection is not active.
  • Fuel trim control is functioning.
  • Engine speed is between 512 rpm and 4000 rpm.
  • Mass fuel flow is between 0.08 r/rev and 0.12r/rev.
  • Elapsed time after starting is longer than 15 seconds.
  • Volume fuel flow is lower than 7.6 l/h to 102 l/h.
  • Canister load is lower than 0.5.
Threshold value
  • High pressure pump delivery is too high.
  • Fuel trim controller including long term fuel trim is between -15% and 15%.
  • Fuel pressure controller is greater than -0.06g.
Case 3 Prerequisite condition
  • Elapsed time after starting is longer than 2 seconds.
  • Engine coolant temperature during starting is between -10°C/14°F and 33°C/91.4°F.
  • Volume fuel flow is lower than 7.6 l/h to 102 l/h.
  • Mass fuel flow is greater than 0.008g/rev.
  • Engine speed is higher than 512 rpm.
Threshold value
  • Fuel pressure during catalyst heating is too high.
  • Fuel pressure difference between set-point and measured value is lower than -1.5MPa.
Diagnosis Time
  • 8 Seconds
MIL On Condition
  • 3rd Driving Cycle
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