This genuine diagnostic pump is used across multiple Ferrari and Maserati models.
It forms a key part of the EVAP system, applying pressure or vacuum to the fuel-vapour circuit to check for leaks and ensure the system remains sealed. A failing pump can trigger EVAP leak codes, emissions warnings or inconsistent system readings. Replacing it with the correct OEM unit restores accurate self-diagnostics and keeps the emissions control system operating to factory standards.
The pump mounts directly in the vapour circuit and typically connects to the filter and EVAP pipes using standard screw collars.




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