Injector Control Pressure Too High
ICP is above the upper threshold during operation. Typically the injection pressure regulator (IPR) is stuck closed or the high-pressure oil pump runs above target.
Affected components
- Injection pressure regulator
- High pressure oil pump
Common causes
- High likelihood: IPR stuck closed
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- Reduced-power or limp mode may occur
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.