OBD Codes List

Diagnostic reference · P2C5F

P2C5F

Cylinder 7 Fuel Injector B Offset Learning At Max Limit

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

What it means

P2C5F means Cylinder 7 Fuel Injector B Offset Learning At Max Limit.

Where it lives

For P2C5F, the description names the injector as the part involved. The description of P2C5F puts it on cylinder 7.

Check these first

  • A cylinder 7 injector B flowing more than commanded
  • High fuel pressure at cylinder 7
  • A leaking cylinder 7 injector B
  • A cylinder 7 injector B stuck at its max offset

What to do next

  1. Read cylinder 7 injector B offset on a scan tool
  2. Check fuel pressure at the rail
  3. Run a cylinder 7 injector B balance test
  4. Test cylinder 7 injector B for a leak
  5. Replace cylinder 7 injector B if it stays at the max limit
  6. Clear the code and retest

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Updated

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