OBD Codes List

Diagnostic reference · P00BA

P00BA

Low Fuel Pressure - Forced Limited Power

System
Fuel and air metering (P code)
Lamp
Check Engine Light
Category
Powertrain - Fuel/Air Metering

What it means

P00BA means Low Fuel Pressure - Forced Limited Power.

Check these first

  • A weak fuel pump that cannot hold pressure under load
  • A clogged fuel filter or restricted fuel line
  • A leak in the fuel supply or return line
  • A fuel pressure sensor reading lower than actual
  • A fuel pump relay or control fault cutting pump power

What to do next

  1. Check fuel level and quality, and add fuel if low
  2. Measure actual fuel pressure at the rail with a gauge
  3. Compare the fuel pressure sensor reading with the gauge reading
  4. Inspect the fuel filter and lines for blockage or leaks
  5. Replace the fuel pump if pressure stays low
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.