Description
Vacuum valve, pressure converter for EATON swirl flaps for Citroën and Peugeot vehicles. Electric exhaust gas recirculation valve. Used part with a guarantee of functionality.
This Eaton vacuum/pressure converter is a compact electro-vacuum component used on several Citroën and Peugeot engines to manage vacuum supply to vacuum-operated actuators. In many applications it controls swirl flap servos in the intake tract and can be part of the EGR (exhaust gas recirculation) control circuit. The unit is commonly searched by part numbers 1951510 and 1628CH, so listing these reference codes in any search or parts inquiry increases the chance of a quick match.
Designed with mechanics and DIY enthusiasts in mind, the valve is a direct-fit replacement for affected models and offers a straightforward swap with basic workshop tools. Replacing the part restores reliable vacuum control, which is essential for correct air/fuel mixing, turbo response on some engines, and proper EGR operation — faults here often trigger drivability issues such as rough idle, reduced power or increased emissions.
Technical Information
- Manufacturer: Eaton
- Model: Citroën C5; Citroën C8; Peugeot 307; Peugeot 406; Peugeot 607; Peugeot 807
- Product Codes: 1951510; 1628CH; NFP
- Additional Numbers: 1951510, 1628CH (reference)
Installation Recommendations
- Work Safely: Park on level ground, allow the engine to cool and, as a precaution, disconnect the negative battery terminal when handling electrical connectors.
- Locate the Valve: The unit is generally mounted on or near the intake manifold or vacuum distribution block; consult vehicle service documentation for exact location on the chosen model.
- Label Hoses: Before removal, mark vacuum hoses and their ports to avoid misrouting on reassembly. Check hoses for cracks and replace if brittle.
- Disconnect: Remove the electrical connector, then detach vacuum lines. Unscrew the mounting fasteners and remove the valve—retain any seals or gaskets and replace them if damaged.
- Fitment: Install the replacement valve, ensure sealing surfaces are clean, tighten fasteners to correct torque, reconnect vacuum hoses and electrical connector.
- Verify Operation: After installation, clear ECU fault codes if present and run the engine to verify correct idle and actuation. A diagnostic scanner that monitors actuator commands is helpful to confirm proper operation.
- Tools Recommended: Basic hand tools, socket set, pliers, hose clamp pliers and a diagnostic scanner for final verification.
Most Common Failure Causes
These valves typically fail due to a combination of contamination, material ageing and electrical issues. Typical failure modes include:
- Soot and Oil Contamination: Accumulation of soot and oil vapors can clog or gunk internal passages and diaphragms, impairing movement.
- Diaphragm or Seal Degradation: Rubber diaphragms and O-rings harden or crack with age and heat exposure, causing vacuum leaks or loss of actuation.
- Electrical Connector Corrosion: Corroded pins or damaged wiring lead to intermittent or permanent loss of signal to the valve.
- Vacuum Hose Deterioration: Cracked or split hoses reduce vacuum supply and mimic valve failure.
Service Life: Lifespan depends on engine type and service conditions; many units show issues after high mileage or in engines producing heavy soot (urban driving, poor maintenance). When diagnosing, always inspect the surrounding vacuum plumbing and electrical connectors to avoid repeat replacements.
Keywords for Search: Eaton vacuum valve 1951510, 1628CH, pressure converter, swirl flap valve, EGR valve, Citroën Peugeot replacement part.
