P0087
Fuel Rail / System Pressure Too Low
System: Fuel
Severity: medium
What does P0087 mean?
The DTC P0087 (Fuel Rail / System Pressure Too Low) is a fault code stored by the ECU when it detects a rail pressure low condition in the fuel subsystem. It is commonly seen on European and Asian vehicles using Bosch, Continental, Siemens or Denso ECUs.
Common causes of P0087
- Failing high-pressure fuel pump
- Clogged fuel filter
- Failed pressure regulator
- Air in fuel system
How to fix P0087
Live rail pressure + commanded vs actual. After repair, DaVinci can recalibrate rail pressure target maps.
Tuning approach with DaVinci Deluxe
For P0087, DaVinci Deluxe offers the following ECU map adjustments and software solutions:
- Rail pressure target adjust
- HPFP duty cycle scale
Need to fix P0087 on your ECU?
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