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Applicable To FAW Weichai Guoliu Heavy-duty Truck Engine Computer Version 612600191584 ECU 1003650718

Applicable To FAW Weichai Guoliu Heavy-duty Truck Engine Computer Version 612600191584 ECU 1003650718

The 612600191584 Engine Control Unit (ECU) — also known as the Engine Control Module (ECM) — is the central "brain" of Weichai’s natural gas (CNG/LNG) engine systems, co-developed with Woodward Inc. (USA) under the OH6 control platform. Designed specifically for high-efficiency gaseous fuel engines such as the WP10NG, WP12NG, and WP13NG series, this ECU precisely manages ignition timing, gas injection, air-fuel ratio, emission control, and onboard diagnostics to ensure optimal performance, fuel economy, and compliance with China V/VI emission standards.

As a core component in modern gas-powered commercial vehicles, the 612600191584 enables intelligent engine operation through real-time data processing from multiple sensors (oxygen sensor, knock sensor, crankshaft position, etc.). It supports advanced features like remote fault diagnosis via GPS/Beidou telematics, making it essential for fleet operators focused on uptime and regulatory compliance.

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Model:
612600191584
Brand:
FAW

Product Description

Attribute	Specification
Product Name	Engine Control Unit (ECU) / Engine Control Module (ECM)
Part Number	612600191584
Alternative Numbers	8237-1104, 82371104, 8237-1481, 82371481, 1003650718
Brand	Weichai Power (developed with Woodward OH6 technology)
Fuel Type	Natural Gas (CNG/LNG) – not compatible with diesel or gasoline
Primary Function	Controls ignition, gas injection, emissions, diagnostics, and power output
Control Platform	Woodward OH6 Series Electronic Control System
Microprocessor	32-bit High-Performance CPU
Voltage Rating	24V DC (standard for heavy-duty trucks)
Protection Level	IP67 (dust-tight and waterproof up to 1m immersion for 30 minutes)
Operating Environment	High-temperature, high-vibration, oil-contaminated engine bay conditions
Vehicle Application	Trucks, buses, and construction equipment with Weichai NG engines

Parameter	Value
Input Voltage Range	18V – 32V DC (wide tolerance for unstable truck electrical systems)
Ignition Control	Precise spark advance and energy control tailored for high-octane natural gas
Air-Fuel Ratio Management	Closed-loop feedback using oxygen sensor; maintains stoichiometric combustion
Knock Detection & Protection	Real-time monitoring via high-sensitivity knock sensor to prevent cylinder damage
Emission Compliance	Supports China V and China VI standards with three-way catalytic converter integration
Data Processing Speed	High-speed multi-channel signal acquisition and response (<1ms latency)
Communication Interfaces	CAN 2.0B Bus (multiple channels), ISO 9141/K-Line (diagnostic port)
Diagnostic Capability	Full DTC (Diagnostic Trouble Code) logging and OBD-II compliance
Memory Type	Flash memory for firmware storage; EEPROM for calibration data
Weight	Approx. 0.6 – 0.8 kg
Mounting Location	Typically mounted on or near engine block with heat-resistant bracket