CFMoto Bosch MG1UA008 Module for BitEdit — ECU Calibration & Tuning
The Bosch MG1UA008 module for BitEdit is designed for professional editing and calibration of ECU firmware used in CFMoto motorcycles and powersport vehicles. It provides full access to essential engine management maps, allowing you to optimize performance, improve throttle response, and fine-tune key engine parameters.
To activate the module you need a USB key BitBox/BitEdit. When ordering, please indicate the Serial Number of the key.
Key Features
- Full support for Bosch MG1UA008 ECUs installed in CFMoto vehicles
- Supported file size: 2.5 Mb
- Wide range of editable maps for air calculation, torque request, ignition, lambda control, VVT, limiters, and more
Available Maps
Air Calculation
- Air mass through throttle body
- Nominal charge calculation
Engine Speed Limitation
- RPM limitation during high temperature
- Gear-based RPM limitation
- Maximum RPM at high oil temperature
- RPM limit in case of speed detection error
- Maximum RPM in normal, manual, and sport modes
- Stationary RPM limits, including high-temperature and mode-based limits
Fan Control
- Fan control test function
Function Monitoring
- Optimum engine torque map
- Optimum ignition advance
- Ignition efficiency based on delta angle
- Lambda-dependent ignition optimization
- Lambda efficiency in monitoring
- Maximum inner torque
- Overrun air charge factor
Idle Speed
- Desired idle speed map
Knock Control
- Knock detection factor map per cylinder
Lambda / Fuel Control
- Lambda delta for component protection
- Lambda component protection maps
- Lambda corrections for exhaust gas temperature
- Lambda targets during after-start
- Warmup lambda with active A/F control (standard & dynamic)
- Enrichment for component protection
- Pre-ignition prevention lambda
- Minimum and nominal lambda values
- Lambda efficiency
Limiters
- Gear-dependent vehicle speed limitation
- Maximum speed for Cruise Control
- Minimum speed for Cruise Control
Requested Torque
- Accelerator pedal in sport mode
- Driver command torque limitation
- Engine drag torque
- Inverse pedal position
- Low-idle load torque
- Reverse gear torque
- Maximum indicated torque (overpower protection)
- Torque limitation factors
- Optimum engine torque
- Additional mode torque request
- Minimum and maximum torque parameters
Spark Advance
- Ignition advance in additional mode
- Main spark advance map
- Delta ignition angle based on efficiency
Temperature Correction
- Intake air temperature compensation
- Calculated exhaust gas temperature
- Exhaust temperature correction by IAT and ambient temperature
- Exhaust valve temperature adjustments
- Temperature factor for air at throttle valve
Throttle Valve Control
- Desired throttle angle
- Throttle angle at maximum mass flow
- Full-load recognition threshold
- Throttle angle dependent on pedal position
VVT (Variable Valve Timing)
- Exhaust camshaft position
- Intake camshaft position
DTC
- Diagnostic Trouble Code control
1. No Refunds or Modifications for Digital Licenses
Activated modules or licenses cannot be returned or refunded.
If an incorrect key or device number is entered by the customer, the purchase is not eligible for return.
Licenses cannot be modified, transferred, or reissued for another device under any circumstances.
2. Irreversible Order Processing
After the order status changes to “Waiting for activation”, the data has already been sent to the developer.
From this point onward, the order cannot be canceled, edited, corrected, or refunded.
3. Responsibility for Software Functionality
Our store is not responsible for the functionality, performance, or declared features of any software module.
We do not guarantee the listed functions because we are not the developer.
4. Accuracy of Product Information
Module and script descriptions are provided directly by the manufacturer.
IOBD.io is not responsible for any inaccuracies, missing details, or differences between the description and actual operation.
In disputed situations regarding functionality or listed features, the customer must contact the manufacturer.
5. Customer Responsibility for Installation
IOBD.io sells professional automotive diagnostic software and equipment.
Installation, setup, configuration, and compatibility checks must be performed by the customer.
We do not provide remote installation, programming, or setup services unless explicitly stated otherwise.
6. Required Technical Knowledge
These products are intended for users with basic technical knowledge in automotive diagnostics.
The customer is fully responsible for understanding the installation process and using the software and hardware correctly.
7. No Liability for Incorrect Usage
IOBD.IO is not responsible for issues caused by:
incorrect installation
unsupported or incompatible hardware
improper configuration
third-party interference
Important:
This function is available only on certain BMW engines and is NOT applicable to other vehicle brands.
The information below applies only to stock engines with factory ECU software and a standard exhaust system.
What This Parameter Actually Represents
This is NOT a direct measurement of fuel octane and is NOT a direct octane reading calculated by the ECU.
The value is an adaptation factor ranging from 0 to 1, where:
- 0 = no correction
- 1 = maximum correction
According to BMW’s internal definition:
Faktor adaptierte Kraftstoffqualität (0 = ROZ98 / 1.0 = ROZ91)
- 0 corresponds to 98 ROZ
- 1.0 corresponds to 91 ROZ
ROZ is the German equivalent of RON (Research Octane Number).
The device converts this multiplier into a more intuitive octane value for user convenience.
⚠️ The device does not measure anything itself.
It only displays the data provided by the engine control unit (ECU).
How the ECU Evaluates Fuel Quality
Each ECU has different calibration sensitivity:
- Sensitivity to the adaptation factor
- Sensitivity of the knock control system
Fuel quality is evaluated subjectively by the ECU, primarily based on:
- Knock ignition timing corrections
- Overall engine noise levels
BMW G-Series & LCI F-Series (B-Engines)
B38 / N63 / S63 / N74
These engines are highly sensitive to octane adaptation.
- During warm-up and cruising, the displayed octane may frequently drop to 95 or lower.
- This does NOT automatically indicate poor fuel quality.
- Under load, the value should increase.
⚠️ If the value continues to decrease under load, this may indicate a problem.
B46 / B48 / B58
These engines have low sensitivity.
- During cruising, octane will typically display maximum values even with mediocre fuel.
- Under load, the value will decrease if fuel quality is truly poor.
S58
Octane correction is virtually inactive.
- It will typically always show 98.
- If it drops below 98, fuel quality is genuinely very poor.
BMW F-Series (Pre-LCI) with N/S Engines
Most pre-LCI F-series ECUs do not calculate octane adaptation.
Do not expect this parameter to function.
S55
- Octane parameter not used by the system
- Display not supported
- However, display of the last 5 refueling quality events is supported
S63
- Octane parameter not used
- Display not supported
- Refueling quality display not supported
BMW E-Series
Octane parameter not available. Display not supported.
Important Notes About Tuned Vehicles
With modified hardware or custom tuning, behavior may vary significantly. Always consult your tuner regarding expected operation.
Key principles:
- If octane drops under load, it means fuel quality is worse than expected under those conditions.
- This does NOT automatically mean the fuel itself is bad.
Examples:
- If a tuner increases ignition timing and boost pressure, even good fuel may cause knock corrections, and the ECU may interpret it as poor fuel.
- Thin-walled or poorly mounted exhaust systems may create parasitic noise, which the ECU may interpret as engine knock, causing negative correction.
- Conversely, if knock sensitivity is reduced or octane correction is disabled in tuning, readings may appear ideal while actual engine safety is compromised.