This Delphi throttle body is intended for 1.4 HDI and 1.6 HDI (including e‑HDI variants) diesel engines fitted to a range of Citroën and Peugeot models and compatible Ford/Volvo applications. Supplied with OEM references 9673534480 and 0345G4, the unit restores correct air metering to the intake tract, improving idle stability, throttle response and overall drivability. The product description and codes make it easy to find when searching by part number — ideal for professional technicians and experienced DIYers.

Designed as a direct replacement for electronic (drive‑by‑wire) throttle systems on 8‑valve HDI engines, this throttle body works together with the engine management system to regulate airflow under all operating conditions. Typical benefits after replacement include reduced surging at idle, quicker throttle response and resolution of limp‑home symptoms caused by faulty position sensors or seized actuators.

Technical Information

• Manufacturer: Delphi
• Model: Engines 1.4 HDI, 1.6 HDI / 1.6 e‑HDI (8V). Common vehicle fitments include Citroën Berlingo B9, Citroën C3 Picasso, Citroën C4 (including C4 II and C4 Picasso), Peugeot 3008 I, Peugeot 308, Peugeot 5008 I, Peugeot Partner Tepee and compatible Ford/Volvo applications.
• Product Codes: 9673534480, 0345G4
• Other Numbers: 0345.G4; 0345G4; 9673534480; (tags/refs) P0487; P0490; P2142/P2143

Installation Recommendations

Before starting any work disconnect the negative battery terminal. Remove the intake hose and any obstructing components to access the throttle body. Disconnect the electrical connector and remove the mounting bolts. Inspect and replace the intake gasket where applicable, clean the mating surfaces, then fit the new throttle body and tighten fasteners to manufacturer torque settings. Reconnect all connectors and hoses.

After installation a throttle adaptation or idle relearn is usually required — either via a suitable diagnostic tool or by following the vehicle manufacturer’s specified procedure. It is recommended to clear related fault codes and verify live sensor values (throttle position, commanded vs actual) to confirm correct operation.

Why This Part Fails Most Often

• Carbon and soot buildup in the intake tract causing the throttle plate to stick or operate sluggishly.
• Wear or failure of the internal potentiometer/position sensor leading to incorrect position feedback.
• Actuator or stepper motor failure in the drive‑by‑wire mechanism.
• Electrical issues such as corroded connectors or damaged wiring harnesses.
• Ingress of oil, coolant or water in rare cases after intake system faults or collisions.

Because throttle issues often arise after long service intervals or from heavy EGR/intake contamination, inspect the intake, EGR valve and air filtration system when replacing the throttle body to reduce the risk of reoccurrence.

Often Searched By: 9673534480, 0345G4 — keep these numbers handy when ordering or searching catalogues to ensure a fast match.

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.