Failure of the component

If the rail pressure regulating valve fails, the following behavior is to be expected:

• Fault entry in the engine control unit
• If activation of the rail-pressure regulating valve is interrupted or there is a short circuit to earth, the engine shuts down.

General notes 

The service function 'Rail pressure regulating valve adaptation' must be run if the rail pressure regulating valve is replaced. Execution of the service function deletes the adaptation value. After installation of the new rail pressure regulating valve, the new value is learned with the engine running and stored in the DDE.

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