Description
Product Overview
This intake throttle valve is designed for PSA 1.4 HDi engines fitted to Citroën and Peugeot vehicles and is commonly referenced by OE numbers 9656113080 and 1628XZ. Supplied by Delphi, the unit regulates intake airflow at low engine speeds and supports idle control and emission management on diesel engines. Customers often search for this item by its product codes, so listing the references improves findability and fitment accuracy.
Key Functions
On 1.4 HDi diesel engines the throttle valve helps manage intake air during idle and transient conditions, assists the engine control unit in maintaining stable idle speed, and can play a role in closed-loop control of EGR and emissions. It is an electro-mechanical component combining a throttling plate, an actuator and position sensing for ECU feedback.
Common Faults And Causes
Failures are typically caused by soot and carbon buildup from diesel combustion, which can cause the plate to stick, or by electrical issues such as actuator or sensor faults, wiring damage, and connector corrosion. Symptoms include unstable idle, stalling at low speeds, erratic throttle behavior or diagnostic trouble codes related to throttle position and idle control. Proper diagnosis should include visual inspection, electrical checks and fault code reading.
Replacement And Fitment Notes
Replacement is straightforward for a trained mechanic or an experienced DIYer. Typical steps:
- Disconnect the vehicle battery to prevent electrical damage.
- Locate the throttle valve on the intake manifold and remove any intake hoses or airbox components blocking access.
- Unplug the electrical connector and remove the mounting bolts securing the unit to the manifold.
- Install the new throttle valve, ensuring the mating surface is clean and the gasket or seal is intact. Torque bolts to manufacturer specification.
- Reconnect the electrical connector and battery. Perform an ECU adaptation or throttle relearn procedure if required by the vehicle, using a diagnostic tool or following the manufacturer’s relearn steps.
Always follow safety procedures and consult the vehicle repair manual for torque values and specific adaptation steps. Some vehicle models require an electronic throttle calibration after replacement to clear idle faults and ensure correct operation.
Durability And Service Life
There is no fixed replacement interval. Longevity depends on driving style, maintenance, and exposure to soot from the diesel EGR system. Regular intake cleaning and proper servicing of the EGR system can extend service life. If you experience idle issues or fault codes, inspect the throttle valve as part of your diagnosis.
Technical Information
- Manufacturer: Delphi / PSA (as fitted)
- Model: 1.4 HDI (Citroën, Peugeot; may also be used on some Ford vehicles sharing PSA 1.4 HDi engines)
- Product Codes: 9656113080, 1628XZ
- Additional Numbers: 9656113080 | 1628XZ
If you are unsure about fitment, compare the OE numbers listed above with the part on your vehicle or consult a parts specialist. This listing is optimized for mechanics and DIY enthusiasts who often search by product number to ensure correct replacement and fast identification.
