MP48 ECU kit is an intelligent gas control unit built for 4-cylinder vehicle CNG and LPG sequential injection conversion systems. Adopting Freescale 16-bit dual-core microcontroller chip, it comes with optimized hardware and software architecture to deliver strong anti-interference performance and low failure rate for aftermarket autogas modification.
This ECU supports real-time driving-condition monitoring. It will automatically switch back to petrol fuel once system faults are detected. Multiple practical functions are integrated, including cold start, hot-gas start and gas-oil blend burning. Accurate MAP correction enables real-time adjustment under varying engine speeds and loads for stable combustion performance.
The MP48OBD version can read original-vehicle OBD data, monitor long-term and short-term engine correction values dynamically to adjust gas injection volume, keep air-fuel ratio in reasonable range and eliminate most factory fault codes triggered by autogas conversion systems. Equipped with multi-function switch and MAP sensor, it improves overall combustion efficiency for 4-cylinder gasoline vehicles.
Key Features
Works for both CNG and LPG sequential injection conversion systems
Designed for 4-cylinder engines, also compatible with 3-cylinder vehicles
Freescale 16-bit dual-core microcontroller, strong anti-interference, low failure rate
Real-time driving-condition monitoring, auto petrol switch-back under fault status
Cold start, hot-gas start and gas-oil blend burning functions available
Precise MAP correction for different engine speeds and loads
MP48OBD reads OBD data, adjusts gas injection and clears gas-caused fault signals
Comes with multi-function switch and MAP sensor for higher combustion efficiency
Durable hardware design and competitive cost for wholesale installation projects
MP48 Technical Specifications
| Regulated Media | CNG / LPG |
| Working Voltage | DC 10-16V |
| Rated Voltage | DC 12V |
| Coil Resistance | ≥1Ω |
| Cylinder Type | 3 / 4 cylinders |
| Injector Emulation Resistance | 150 Ω |
| Ambient Temperature | -40℃ ~ 125℃ |
| Waterproof Level | IP54 water resistance |
| Connection | 48 Pin |
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Frequently Asked Questions
What engines does MP48 ECU kit support?
It mainly fits 4-cylinder gasoline vehicles for CNG / LPG sequential injection conversion, and it also supports 3-cylinder engine modification projects.
What is the advantage of MP48OBD function?
MP48OBD reads vehicle OBD data in real-time, adjusts gas-injection quantity, maintains proper air-fuel ratio and removes most fault codes caused by gas conversion systems.
Will MP48 automatically switch back to petrol when failure occurs?
Yes. Real-time driving-condition monitoring is built-in. The unit switches to petrol fuel automatically to protect the engine once gas-system faults are detected.
What working environment can MP48 ECU endure?
It supports ambient temperature from -40℃ to 125℃ with IP54 waterproof rating, adapting to complex under-hood working conditions.
Is professional installation required for MP48 conversion kit?
Yes. Vehicle gas conversion involves automotive electric circuits and gas pipelines. Professional autogas technicians are required for wiring, setup and calibration.
Application Notes
MP48 ECU kits are widely used for passenger cars, taxis and light-duty vehicles for petrol-to-gas retrofit. Please complete parameter calibration with supporting tuning software after installation. Regular inspection of wiring harness and connectors helps extend service life and guarantee stable running of CNG or LPG systems.
