Sequential Gas Injection Control for MPI Engines
The MP48 is a 48-pin programmable gas ECU for compatible 3-cylinder and 4-cylinder MPI gasoline engines. It controls sequential gas injection in a supported CNG or LPG conversion configuration.
The controller uses gasoline injection signals and configured gas-system inputs to determine gas injection commands. Correct operation requires matching injectors, sensors, wiring and calibration software.
MP48 Technical Specifications
| Item | Specification |
|---|---|
| Controller designation | MP48 |
| Engine application | Compatible MPI port-injection gasoline engines |
| Supported cylinder configurations | 3 cylinders or 4 cylinders |
| Connector | 48-pin; verify the pin assignment and matching harness |
| Operating voltage | DC10–16V |
| Operating temperature | -40°C to +110°C |
| Injection arrangement | Multipoint sequential gas injection |
| Fuel configuration | CNG or LPG, with the corresponding components and calibration |
| Warranty period | 1 year; subject to the agreed coverage and claim terms |
| OEM options | Logo and packaging customization for bulk orders; technical changes require separate review |
What Must Match the 48-Pin ECU?
A 48-pin connector does not establish plug-and-play compatibility. Confirm the terminal assignment, harness version and supported components before replacing an existing controller.
Engine: Vehicle model, engine code, cylinder count and MPI injection arrangement.
Gas injectors: Supported injector model, electrical characteristics and flow selection.
Sensors: Compatible pressure, MAP and temperature signals.
Wiring harness: Connector layout, terminal functions, power supply and grounding.
Software: Compatible calibration software, interface cable and firmware version.
Fuel system: Reducer selection, pressure settings and the intended CNG or LPG configuration.
This page covers the 3-cylinder and 4-cylinder MP48 configuration. A 6-cylinder or 8-cylinder installation requires a separately specified controller. Browse our CNG and LPG ECU range for other configurations.
Calibration and Commissioning
Programming must match the installed engine and gas-delivery components. Configure the supported injector and sensor types, then follow the controller's calibration procedure.
Automatic calibration, where supported by the supplied software version, does not replace operating checks. Verify fuel switching and gas operation under the required engine conditions. Read our injector rail and ECU calibration guide for related information.
Power output and fuel consumption depend on the complete conversion. Engine condition, fuel properties, component sizing and calibration all affect the result. Evaluate the installed system rather than assuming identical gasoline and gas performance.
Factory and Processing Images
Frequently Asked Questions
Which engines can use this MP48 ECU?
The specified application is compatible 3-cylinder and 4-cylinder MPI gasoline engines. Confirm the engine code, signal requirements and supported component configuration before ordering. This does not establish direct-injection engine compatibility.
Can the same controller be configured for CNG or LPG?
The selected fuel configuration must be supported by the controller and software. Match the reducer, injectors, sensors and calibration to the intended fuel.
Can it replace any other MP48 controller?
The MP48 name alone does not establish interchangeability. Compare hardware identification, pin assignments, firmware, harness and supported functions before selecting a replacement.
Are software and the communication cable included?
Confirm these items on the quotation. Specify whether the order requires the ECU only or a package including harness, switch, sensors, software access and communication cable.
Does the ECU include OBD functionality?
OBD support is not established by the specifications on this page. Request documentation for the exact hardware and software version if that function is required.
What warranty and OEM services are available?
The stated warranty period is 1 year, with logo and packaging customization available for bulk orders. Confirm warranty terms and the scope of any requested technical changes before purchase.
Package Contents and Installation
The quotation should identify each supplied component. Confirm the ECU, harness, switch, sensors and communication accessories individually. A controller listing does not establish that a complete conversion kit is included.
Installation must follow the supplied wiring and mounting instructions. A qualified installer should check polarity, grounding, circuit protection, signal connections and component compatibility before calibration.
Gas-system components must be selected together. Review our gas injector rails when specifying the associated injection hardware.
Request the MP48 Configuration and Quotation
Send the engine and required package details with your inquiry. Include the engine code, cylinder count, intended fuel, injector model, existing controller identification and quantity. Contact us to confirm the MP48 version, software requirements and quotation.
