2021-2025 Alfa Romeo Stelvio P1CEA Engine Light TSB

Symptoms

Owners of affected vehicles, including the 2021-2025 Alfa Romeo Stelvio, may experience the illumination of the "Engine Light On" on their dashboard. This warning light is typically accompanied by the diagnostic trouble code (DTC) P1CEA, which indicates a "Boost Side EVAP Purge System Performance" issue. This code suggests that the evaporative emission control system is not functioning as intended, specifically concerning the purge control system.

Fault Codes / DTCs

The primary diagnostic trouble code associated with this issue is:

• P1CEA: Boost Side EVAP Purge System Performance

This code points to a problem within the vehicle's evaporative emission control system, which manages fuel vapor and prevents its release into the atmosphere.

Diagnosis and Trigger Conditions

Before any parts, such as the purge control valve (Part Numbers: 05281586A$, 68337662A$, 68360098A$, 68565193A$), are replaced to address the "Engine Light On with P1CEA" condition, technicians are advised to perform a thorough inspection of the purge hoses. The manufacturer communication 9100325 emphasizes that the issue might stem from improper installation or physical damage to these hoses. This diagnostic approach helps prevent unnecessary part replacements and ensures the root cause of the EVAP system performance issue is correctly identified.

Repair Procedure Summary

The recommended repair procedure focuses on inspecting and correcting the installation of the purge hoses. Technicians should meticulously check for any hoses that are improperly connected, kinked, or pinched at several key locations within the EVAP system. These critical inspection points include:

1. Ejector Tees on the Air Box or Duct: Verify proper connection and ensure no kinks or pinches are present.
2. Purge Solenoid or OBD Valve: Inspect the purge hose connected to these components for any improper connections or physical obstructions like kinks or pinches.
3. Intake: Examine the purge hose routing and connection at the engine intake manifold for correct installation and absence of damage.
4. Overall Purge Hoses Installation: Conduct a general check to confirm that all purge hoses are installed correctly throughout the system, ensuring proper routing and secure connections.

Correcting any identified issues with hose connection, kinking, or pinching is crucial for resolving the P1CEA code and restoring proper EVAP system performance.

Important Warnings

This manufacturer communication, identified as 9100325, explicitly states: "Before replacing any parts please refer to SOL S2518000008 if it applies to the vehicle you are working on based on a VIN search in Service Library." This instruction highlights the importance of consulting the specified Service Operations Letter (SOL) and performing a VIN search before proceeding with any part replacements. This ensures that the correct diagnostic and repair procedures are followed, potentially preventing unnecessary repairs or misdiagnosis of the "Engine Light On with P1CEA" issue.

Owner Action

If your vehicle, such as a 2021-2025 Alfa Romeo Stelvio, displays the "Engine Light On with P1CEA (Boost Side EVAP Purge System Performance)" message, it is recommended to schedule an appointment with an authorized dealership. Technicians at the dealership are equipped to perform the detailed inspections outlined in manufacturer communication 9100325. They can accurately diagnose the cause of the P1CEA code by checking the purge hoses and ensuring their correct installation, thereby resolving the underlying EVAP system performance issue.

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Source: NHTSA ID: 11024035