Description
MAFLESS TUNER is a MAF sensor emulator that provides 3D 2D MAP control from the built-in MAP sensor, RPM, and throttle position.
Remove the MAF sensor with large intake resistance and switch to the D-JETRONIC method and THROTTLE DENSITY method.
Performance exceeds that of fuel regulation tuning parts added to MAF sensor.
The MAFLESS tuner is the only way to avoid using the MAF sensor with the stock ECU.
- High response by eliminating the intake resistance of the MAF sensor
- Remove horsepower limitation from MAF sensor
- Same 3D-MAP setting as engine management systems
- 3D setting function of fuel injection amount by MAF emulation
- Change the existing ECU to the same control as the Engine Management Systems
- No limit to the air intake diameter and Supports multi-throttle
- Throttle-density control compatible (Throttle-speed, Alpha-N)
- Compatible with AFM, MAF sensors (mechanical airflow, hot wire) up to 5V
- Two types are available: Naturally Aspirated and Turbo engine
- Easy setting with automatic setting function using existing MAF sensor
- Password protection for setting data
- Data logger for Pressure, rpm, and Throttle position
- USB Type-C connection, real-time setting with Windows software
MAF sensors (mass airflow sensors) are installed in most electronically controlled engines.
MAFLESS Tuner emulates the MAF sensor by adding D-Jetronic control with a pressure sensor and a 3D map of the number of revolutions, and α-N control by the throttle position.
The MAFLESS tuner is also an effective replacement for discontinued AFM and MAF.
- Software download (link to download page)
- MAFLESS Tuner Quick Start manual (pdf file) 31.Aug.2021 update
Advantages and disadvantages of MAF sensor and AFM
- Benefits of MAF sensor
- Good fuel economy because it is accurate at constant speed
- Exhaust gas is clean in the low speed range
- Low cost
- Disadvantages of AFM and MAF sensor
- MAFs are hot wire type, so the reaction is slow
- AFM is very slow due to mechanical flaps
- There is an upper limit to the amount of intake air
- Sensor becomes inhalation resistance
- Measurement error due to turbo backflow
- Difficult to power up significantly
- Long suction pipe
The MAF sensor measures the wind speed on the principle that the heat rays are cooled by the wind.
The amount of intake air is the wind speed x intake diameter. Therefore, if the intake diameter is increased, it becomes difficult to set the low speed range.
A temperature sensor is also required because the correct intake air volume is affected by temperature.
AFM measures the amount of intake air by the opening angle of the flap, which is tensioned by a spring.
The MAF sensor has excellent characteristics for general commercial vehicles.
However, it is rarely used in race cars.
Product type:
- MLT-115 Vacuum to 115kPa : For naturally aspirated engines
- MLT-250 Vacuum to 250kPa : For boost pressure up to 1.5bar
- MLT-400 Vacuum to 400kPa : For boost pressure up to 3.0 bar
Each product has a different built-in MAP sensor.
The built-in MAP sensor is based on vacuum state.
Corresponds to the boost pressure of the sensor’s allowable value minus the atmospheric pressure.
Vehicles that can be installed:
All vehicles with a MAF sensor with a maximum DC 5V output. (Excluding Karman vortex sensor)
Installation results:
NISSAN R32 R33 R34 R35 GTR
MAZDA MIATA NB NC ND FD3S
TOYOTA SUBARU MITSUBISHI BMW PORSCHE etc.
Product contents:
- MAFLESS TUNER main unit (Built-in MAP sensor) x1
- Software USB flash drive x1
- VACUUM Hose (1.6m) x1
- VACUUM Hose Clip x4
- USB Type-A to Type-C cable x1
- Wiring loom set x1 (98cm optional)
Software
- Free download
- USB memory (Same content as download, paid option)
USB memory can be ordered at the time of purchase of the MAFLESS TUNER set.
It may not be the latest version as it is constantly updated.
Download is recommended.
Note:
Please download the Software download check the included help before purchasing the product.
You can refer to the sample data. However, changing the data requires MAFLESS hardware.
We do not have individual car wiring diagrams, so please bring your own.
MAFLESS TUNER cannot be changed beyond the ECU or injector capacity. If the adjustment range of the MAF sensor input is exceeded, ECU data change or hardware tuning is required.
Wiring requires +12V power supply and ground, MAF sensor input/output, throttle position, engine rotation pulse.
Wiring is easy with a commercially available MAF sensor extension cable.
This product is for racing use only.
Use according to the laws of your country.
This product does not include setup costs.
If you do not understand the installation and settings, ask a shop that has knowledge including installation.
