P000E — Fuel Volume Regulator Control Exceeded Learning Limit
The ECU's adaptive correction of fuel volume regulator A has reached its learning limit. Indicates a long-term drift between commanded and actual rail pressure that could no longer be compensated.
General code reference. Confirm the definition and diagnostic procedure for your vehicle's year, model and engine. A stored code alone does not identify a failed part.
Affected components
- High pressure fuel pump
- Fuel volume regulator
- Fuel filter
- Fuel rail pressure sensor
Possible causes to check
These are possible checks, not a ranked diagnosis. Follow the vehicle manufacturer's test procedure before replacing parts.
- HP pump worn out
- Fuel filter clogged, restricted supply
- Internal leak (injector or rail)
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
- Reduced-power or limp mode may occur
Sources
Check each reference's vehicle and model-year scope. General background links do not establish which fault is most likely on your vehicle.
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.