Control Valve 28264094 Compatible Injectors and Applications

Delphi Control Valve 28264094 is a precision component used in selected Delphi common rail diesel injector applications. Related reference numbers include 9308-625C and 9308Z625C, making accurate part identification important when sourcing a replacement for injector repair.

For diesel repair workshops, distributors, and aftermarket parts buyers, understanding the valve’s function, compatible injector references, and engine applications helps support correct parts selection. This guide explains the main specifications, common symptoms, diagnostic considerations, and a real workshop case involving a Great Wall Hover H5 diesel engine.

Common Rail Injector Control Valve 9308-625C 28264094 For Great Wall

What Is the Function of Delphi Control Valve 28264094?

Control Valve 28264094 is part of the injector’s internal hydraulic control system. It helps regulate fuel movement within the injector, supporting the hydraulic operation required for controlled fuel injection.

When the valve’s sealing surfaces or internal movement are affected by wear, contamination, or damage, the injector may develop excessive internal leakage or fail to operate as intended. Depending on the fault, this can affect fuel delivery, engine smoothness, and the fuel pressure required by the injection system.

Replacing the control valve may restore correct operation when testing confirms that the valve is responsible for the problem. However, the condition of the complete injector must also be assessed because faults can originate from other internal components.

What Are the Specifications and Cross-Reference Numbers for Control Valve 28264094?

The following identification details help buyers and technicians check the component before ordering.

Part number: 28264094
Related reference numbers: 9308-625C and 9308Z625C
Component type: Diesel common rail injector control valve
System association: Selected Delphi electronically controlled common rail injectors
Related injector reference: EMBR00101D
Other associated references: 28231014 and 1100100-ED01
Additional application reference: 28230891, associated with certain Mercedes-Benz OM651 D18 application information

These references are useful for parts identification, but buyers should distinguish between a control valve number and an injector assembly number. Confirm the intended component and application against the relevant parts information before placing an order.

Specific material grades, coatings, dimensional tolerances, and internal construction details should be confirmed through reliable technical documentation rather than inferred from the part number.

Which Injector Numbers Are Compatible With Control Valve 28264094?

Control Valve 28264094 is associated with selected Delphi injector applications, including the EMBR00101D family. Related references include 28231014 and 1100100-ED01, while 28230891 is relevant to certain other application information.

When identifying a replacement, technicians should start with the complete injector number and compare it with the control valve reference. Similar-looking injectors may use different internal components, so external appearance alone is not a reliable compatibility check.

Before ordering, confirm:

The complete injector part number and identification markings.
The corresponding control valve reference.
The engine application and injector version.
The supplier’s compatibility information for the specific assembly.

Providing clear photos of the injector markings alongside the part number can help suppliers verify the correct replacement.

Which Engine and Vehicle Applications Use Control Valve 28264094?

Control Valve 28264094 is associated with selected diesel applications. Relevant examples include the following vehicle and engine groups, subject to confirmation of the installed injector reference.

Great Wall diesel engines

The Great Wall Hover H5 with the GW4D20 2.0-litre diesel engine is a relevant application. The associated injector references include EMBR00101D, 28231014, and 1100100-ED01.

Selected Ford diesel vehicles

Related application information includes selected Ford 2.0 TDCi models such as the Mondeo, Kuga, Galaxy, and S-Max. The exact engine version and injector identification should be checked before selecting the valve.

Selected Peugeot and Citroën diesel vehicles

Certain 2.0-litre HDi and BlueHDi applications are also associated with the relevant injector references. Vehicle model and engine displacement alone are not sufficient to establish fitment.

Selected Mercedes-Benz diesel engines

The OM651 D18 application is another reference to consider when checking compatibility with the corresponding injector assembly.

These application details help narrow the search for a replacement, but final selection should be based on the complete injector number and the relevant parts reference.

What Symptoms May Indicate a Fault With Control Valve?

A control valve problem may affect injector hydraulic control and contribute to several engine symptoms. The most relevant signs include:

Rough or unstable idle: Uneven injector operation may cause the engine to run irregularly.
Hard starting: Excessive internal leakage or another fuel-system fault may make starting more difficult.
Fuel rail pressure deviations: Actual pressure may not follow the requested value under certain operating conditions.
Reduced engine performance: Inconsistent injection control may contribute to poor acceleration or reduced power.
Fuel-system fault codes: Diagnostic codes may indicate a pressure or injection-control problem but do not independently prove that the control valve has failed.

These symptoms can also arise from other injector faults, fuel-supply restrictions, pressure-control components, wiring issues, or engine problems. Further testing is needed before deciding on a repair.

How Should Technicians Diagnose a Problem With Control Valve?

An effective diagnosis should identify the source of the fault before replacement parts are selected.

1. Read diagnostic codes and operating data. Check relevant engine and fuel-system codes, then compare requested and actual rail pressure under suitable test conditions.

2. Test injector return flow when appropriate. Compare the injectors under consistent conditions and follow the applicable test procedure. Differences between injectors can help identify an abnormal unit, but acceptable limits depend on the injector design and test conditions.

3. Evaluate the affected injector. If the results indicate excessive internal leakage, further inspection or professional test-bench evaluation may help determine whether the control valve or another internal component is responsible.

4. Confirm the repair scope. Replace the control valve when the findings support valve-level repair and the remaining injector components are serviceable. If the injector has additional damage, replacing the valve alone may not resolve the problem.

This approach helps avoid unnecessary replacement and ensures that the repair addresses the diagnosed fault rather than relying on symptoms alone.

When Is Control Valve 28264094 Replacement the Right Repair Option?

Control valve replacement may be appropriate when testing identifies a valve-related sealing or hydraulic control problem and the injector remains suitable for component-level repair.

Before proceeding, the technician should consider the condition of the injector body, internal components, and other precision parts. If there is extensive wear or damage beyond the control valve, a more comprehensive repair or injector replacement may be necessary.

The decision should be based on test results and the injector-specific repair procedure. Rough idle, hard starting, or a pressure-related fault code by itself is not sufficient evidence that Control Valve 28264094 needs replacement.

Great Wall Hover H5 Workshop Case

In a real workshop case involving a Great Wall Hover H5 with a GW4D20 diesel engine, the customer reported rough idle and uneven engine operation. Because these symptoms can have several causes, the workshop investigated the fuel-injection system rather than immediately replacing the suspected parts.

During the investigation, the technicians carried out injector return-flow testing. Two injectors showed abnormal internal leakage compared with the other units, narrowing the investigation to those injectors.

After further assessment, the workshop determined that control-valve replacement was appropriate for the affected injectors. The replacement components were identified using the 9308-625C reference associated with the relevant valve application. The injectors were then reassembled and checked as part of the repair process.

Following the repair, the workshop checked injector operation and engine running condition to evaluate the original complaint. This case illustrates the value of comparing test results across injectors and confirming the fault before selecting a replacement component.

The key lesson is that a control valve should be replaced based on diagnostic findings, not simply because an engine runs roughly. Accurate part identification and appropriate post-repair testing remain essential to a reliable repair.

What Should Technicians Check When Installing Control Valve 28264094?

Because the injector contains precision hydraulic components, cleanliness and correct assembly are essential during control valve replacement.

Verify the part number: Match the replacement to the original injector and applicable parts documentation.
Maintain a clean work area: Prevent dust and debris from entering precision fuel passages during disassembly and assembly.
Follow the correct repair procedure: Use the tools and assembly specifications applicable to the specific injector design.
Inspect related components: Check for other internal wear or damage that could affect the repair outcome.
Test after reassembly: Carry out the appropriate injector test and verify engine operation after installation.

Avoid applying generic tightening values or procedures to different injector designs. Follow the relevant technical instructions for the exact assembly.

Related Delphi Control Valve Models and Guides

Injector Control Valve 9308-625C 28394612 For SKODA VW
Common Rail Injector Control Valve 9308-625C 28397897
Common Rail Injector Control Valve 9308-625C 28475605
Diesel Injector Control Valve 9308-625C 28525582 For Hyundai Kia

1. Is Control Valve 28264094 the Same as 9308-625C?

These numbers are associated in parts references for the relevant valve application. Confirm the injector number and supporting parts information before treating them as interchangeable for a specific repair.

2. Can Control Valve Be Repaired Instead of Replaced?

The control valve is generally evaluated as a replacement component during injector servicing. Whether the complete injector can be repaired depends on its condition, design, and the availability of a suitable repair procedure.

3. Does Rough Idle Always Mean the Control Valve Has Failed?

No. Rough idle may result from injector faults, fuel-supply problems, air entering the fuel system, sensor issues, or engine mechanical conditions. Diagnosis is required to identify the actual cause.

4. Does Replacing Control Valve 28264094 Require Injector Coding?

Coding requirements depend on the injector and engine management system. Check the applicable service procedure rather than assuming every Delphi injector follows the same requirements.

5. What Information Should Buyers Provide Before Ordering?

Provide the complete injector number, the control valve reference if available, the engine or vehicle details, and the required quantity. Photos of the original identification markings can further assist compatibility checks.

6. How Do I Identify the Correct Replacement for Control Valve 28264094?

Check the original injector’s complete part number and compare it with Control Valve 28264094 and its related references, including 9308-625C and 9308Z625C. Confirm the application using reliable parts information before ordering, as similar injector models may use different internal components.

7. What Causes Control Valve to Fail?

Potential causes include fuel contamination, wear on internal sealing surfaces, and damage to precision components. These problems may contribute to excessive internal leakage, rough idle, hard starting, or fuel-pressure irregularities. Proper injector testing is necessary to confirm whether the control valve is responsible or another fuel-system component is causing the symptoms.

Conclusion

Delphi Control Valve 28264094 is associated with selected Delphi common rail injector applications, including certain Great Wall diesel systems and other verified applications. Related references such as 9308-625C and 9308Z625C help with identification, while the complete injector number remains important for confirming compatibility.

For diesel repair workshops, distributors, and aftermarket buyers, accurate part identification, evidence-based diagnosis, and proper post-repair testing help support reliable repairs. Pioneer Diesel Parts supplies new aftermarket diesel fuel-injection components and can assist with part-number verification and quotation requests.

Brand names and vehicle references are used for identification and compatibility purposes only. Replacement components are aftermarket unless explicitly stated otherwise.

Control Valve 28264094 for Great Wall Hover H5 and Application Guide