Injector Control Pressure Too High - Engine Off
ICP remains above threshold after engine shutdown — pressure does not bleed off as expected, indicating a stuck check valve or sensor offset error.
Affected components
- Injection pressure regulator
- Injector control pressure sensor
Common causes
- High likelihood: Check valve stuck
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
Related codes
Sources
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.