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FAW J6P J7 FAWDE Natural Gas Engine CA6SM3 Exhaust Control Valve Assembly 1118040‑54F‑A‑C01
This control valve receives electrical signals from the ECU to precisely regulate the airflow, preventing excessive turbocharger pressure and ensuring the gas mixture ratio remains optimal.
Core Functions and Failure Symptoms
1. Pressure Regulation and Torque Limiting: During high-load hill climbing or high-speed cruising, if the intake pressure exceeds the safety limits for the air-fuel mixture, the ECU uses this valve to release pressure by opening the turbocharger wastegate, allowing a portion of the exhaust gas to bypass the turbine and flow directly into the exhaust pipe.
2. Fault Code Characteristics: If the valve fails due to a burnt-out coil or internal pneumatic jamming, the ECU immediately illuminates the emissions warning light and logs fault codes such as P0234 (over-boost), P0299 (under-boost), or codes indicating the solenoid is stuck open or the circuit is open. The vehicle immediately enters a restricted mode (limiting speed to 20 km/h or 60 km/h and resulting in a significant loss of engine power), necessitating immediate replacement.
FAWDE National VI Natural Gas Engine Wastegate Control Valve System Overhaul Replacement Parts List (BOM)
| No. | FAW / FAWDE Genuine Part No. | Part Name (EN) | Qty | Unit | Component Category / Replacement Strategy | Remarks |
|---|---|---|---|---|---|---|
| 1 | 1118040-54F-A-C01 | Wastegate Control Valve Assy | 1 | Pc | Core Component / Replace if coil burns out, seizes, or triggers error codes | Main Assembly. Dedicated 24V PWM electronic valve for National VI gas engines; controls precise boost pressure regulation. |
| 2 | Supplied with Box / Optional | Control Valve Gasket / O-Ring | 1 | Pc | Wear Part / Must be 100% replaced every disassembly | Made of composite metal or high-fluorine rubber. Ensures high-temperature airtightness to prevent gas or control pressure leaks. |
| 3 | 1118010-XXXX (Ref) | Turbocharger Assembly | 1 | Pc | Core Component / Replace if wheel is worn, shaft leaks oil, or housing cracks | The wastegate control valve is mounted directly on or near the turbo housing. Ensure the bypass linkage moves smoothly during overhaul. |
| 4 | - (Ref) | Vacuum / Pressure Silicone Hose | 1-2 | Pcs | Consumable / Replace if hose is cracked, hardened, or leaking | Connects the control valve to the turbo actuator. Crucial for stable pressure transmission and preventing torque derating. |
| 5 | - (Ref) | Electrical Wire Harness Connector | 1 | Pc | Condition-Based / Replace if plug is burnt or pins have green copper rust | Responsible for 24V PWM signal connection with vehicle harness. Features an internal silicone moisture seal ring (IP6K9K). |
| 6 | Q150B0825 (Ref) | Mounting Flange Bolts | 2-3 | Pcs | Consumable | Standard M8 high-strength flange bolts. Do not overtighten to avoid cracking the plastic valve ears. |
DETAILS
| DESCRIPTION | Exhaust Control Valve Assembly | PART NUMBER | 1118040‑54F‑A‑C01 |
| WEIGHT | 1kg | VOLUME | 170 mm × 110 mm × 100 mm |
| TRUCK MOLDE | FAW | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | ENGINE |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
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