Show/Hide Toolbars

MaxxECU online help

Navigation: » No topics above this level «

MaxxECU Introduction.

Scroll Prev Top Next More
MaxxECU Logotype Mastermind slogo white BG_vector



MaxxECU - Top of the line engine management system.

MaxxECU is a Swedish based company, developing and producing our own market leading engine management system. Made by professional tuners to be the most powerful, easy to use and flexible engine management system ever made. MaxxECU is designed to give optimal performance on the track and on the street. Built-in fault diagnostics and engine protection as standard.


MTune, the modern and flexible PC software is used for all configuration, tuning.

MDash, Android app, displays all engine data to the user. Inputs also possible.


Note: This help documentation is a complement to our PDF manuals


Are you missing something? Please contact us!





Latest MTune updates


MTune 1.115

Fixed a bug where the lean power cut feature was activated incorrectly.


Download here.

Release date: 2018-08-30



MTune 1.114

Reset Timer with pulse

More options for transbrake control.

Radiator fan disable over a certain speed.

Fixed a bug where the Read/Write dialog always was visible in 1.113 release.

Fixed a bug with the rolling launch function which could trigger the Lean power cut feature.



Release date: 2018-08-30






MTune 1.113

New Rotary/2-stroke fueling and ignition modes in engine settings.

New Rolling Launch function and the required digital input function Rolling launch control switch.

New OEM CAN protocol: E38 ECM (Corvette C6).

New Dual mode rev limiter.

New Rev limiter cut pattern for smoother rev limiting.

New Tune selector, to be used in the whole system as a variable to change one or more settings at the same time.

New Custom fuel stoich AFR setting.

Lean power cut from lambda target table as an option.

New digital input: Logging, reset and start new file.

Added option to set max input frequency for speed inputs.

Sensor supply voltage tracking and offset adjustments on all AIN (temperature) and AIN (0-5V) channels.

Added setting for primary gear reduction ratio in the input shaft speed sensor used on bikes.

New trigger: Mitsubishi EVO X.

New trigger: LS3 CAM.

New trigger: Rover K-series (lotus elise) 1.8 (CAM).

New trigger: Mercedes C63 AMG V8 (CAM).

New trigger: Audi 1.8T (CAM).

New trigger: Nissan VQ35DE.

New trigger: Mazda 1.6 MX5/Miata/Eunos.

New trigger: Mazda MX5 NB (99-05).

New trigger: Renix 66-2-2-2.

New trigger: Diahatsu Mira (3+1 on CAM).

New external lambda controller added: AEM X-series (30-0300).

Idle control: tab moved to root navigation pane.

New RealTime Data value: Each individual ignition angle correction.

Update to the distance counter RealTime Data value, 100Hz update speed instead of 10Hz.

Search in MTune RealTime values and stored log-files (files from live-logger or internal logger).

Min, max and average values in log viewer.

Zoom with buttons (arrow UP/DOWN) in log viewer.

Graph overview added in the log viewer.

Channel presets are now back in the Live-logger.

Two more Trailing ignition outputs added.

Fuel pressure deviation tracking from target fuel pressure ”Fuel pressure error”.

Nitrous fuel correction added.

Anti-lag fuel adjustment can now use both positive and negative values.

AC magnetic clutch activation delay added.

Fuel pulsewidth adder added.

E-Throttle module inputs can now be assigned as any other 0-5V input function.

Fixed a bug where timer reset was delayed 10ms (added asynchronous timer stops).

Fixed a bug where the boost limiter error code showed after an firmware update on the MaxxECU RACE.

Fixed a bug with 4D table when the Z-axis was negative.

Fixed a bug when updating 108 tunes in imperial mode.

Fixed bug with inverter nitrous timer.

Sensitivity level of +5V reference changed (some times caused error code 14).



Download here.

Release date: 2018-08-01













MTune 1.112

New trigger: Missing tooth on cam as the main trigger.

Added an option to have a fixed fuel pressure (not vacuum/boost tracking).

Added options to set interpolation modes for each table axis (XYZ).

Fixed a bug loading settings in imperial mode (from version 1.109).

Fixed a bug importing tables.

Fixed a bug with incorrect scaling of injector deadtimes as tables.

Fixed a bug where lambda A and B showed 0.000 instead of Warmup during warmup.



Download here.

Release date: 2018-02-20



MTune 1.111

Added a free air calibration button for the lambda sensors (for calibrating worn/older sensors)

Fixed a bug with an incorrect file name shown when comparing tunes.

Fixed a bug causing crashes when opening/comparing files from 1.108 or before.

Fixed a bug when importing 4D tables into tables with no 4D axis activated.

Fixed a bug with firmware updates freezing.

Fixed a bug where the user could load settings from the ECU after skipping a firmware update which resulted in a corrupt tune.



Download here.

Release date: 2018-02-15



MTune 1.110

Undo and redo operations using CTRL + Z and CTRL + R in MTune.

NEW CAN protocol: BMW E46 330i (MS43 ECU), experimental release.

CAN System Oil Temperature input added.

Added function to do multiplication directly in the tables (*0.93, or *1.21 for example) on selected cells in 2D.

Added settings for reactivation conditions after EGT power cut, Lean power cut and Boost cut.

Added function to induce knock in knock sensitivity settings page.

Option to use a table for the cranking angle.

Trigger arm lower than 0.2volts are now available.

Internal MAP sensor is automatically used as BARO sensor when an external MAP is enabled.

New RealTime Data value: Active state of each nitrous stage.

New RealTime Data value: Active time for each stage.

Update to the Surface 3D to reflect the 4D axis when using True 4D tuning.

Update to 4D axis is now done correctly from earlier encrypted tunes (<1.109).

Update to the Ford Focus OEM CAN to make the speedometer in dash smoother.

Update to keyboard shortcuts: Insert/remove rows in tables with Insert/Delete keys.

Update to keyboard shortcuts: Hotkey (M) for multiply in 2D tables.

Update to keyboard shortcuts: Earlier CTRL + R to reset error codes is now "R" key only.

Bugfix: Missing math-functions in the tables.

Bugfix: Local autotune did not function in main fuel 2D table.

Bugfix: Incorrect file names were shown in program bar.

Bugfix: Code 95 (CRC error) after importing table from older saved tunes.

Bugfix: Various fixes.



Release date: 2018-02-12






MTune 1.109

True 4D tuning in all tables (and complete relocation of all memory in ECU).

Compare maps.

Update to the surface 3D view.

Nitrous control: 6 stage control system.

Nitrous control: All stages can be ON/OFF or PWM controlled (selected for each stage).

Nitrous control: Stages can be controlled by set conditions or digital inputs (actual inputs or internal outputs with additional conditions).

Nitrous control: Ramp back of ignition timing on stage deactivation.

Nitrous control: A fuel-model based "dry" stage system. Just enter the nitrous jet size and the system calculates the required fuel.

Nitrous control: A dedicated "Nitrous timer" to fire sequential stages after the launch. With a hold feature if the driver lifts.

Nitrous control: A comprehensive protection system (which can be disabled).

Faster RealTime Data update (new and faster protocol).

New RealTime Data value: Internal outputs states.

New RealTime Data value: Total engine run time (with possibility to reset).

New RealTime Data value: Time after shift.

Description for each digital input, for easy identification during tuning/logging.

Bugfix: Firmware update dialog sometimes hides behind main window after update.

Bugfix: Timeslip data "xxx" instead of "xx.x".

Bugfix: Log file size with fast shutoff.

Open logfiles automatically after download.

Log the advanced warning system.

Clutch input can now reset distance counters.

Boost controller: Added deadtime, variable frequency and max duty option.

Trim fuel or ignition by table.

Target speed adjustments table to the power management system.

Option added ramp back speed to the extra ignition tables.

Actuator control.

Settings is now sorted in alphabetical order in MTune settings tree.

Pulse output system.



Release date: 2018-01-26


Note: a lot of new settings on the Nitrous system has been added or modified, make sure to check your settings after the firmware update! <-- CRITICAL and MUST BE CHECKED!!!!

Downgrading note: Downgrading from a version 1.109 or above, to version 1.108 or below will corrupt the tune in the ECU. This is because 1.108 does not support the dynamic 4D tables that were added in 1.109. If you still want to do this downgrade, you need to have a tune-file saved from the old version and reload it after after the firmware downgrade.


Surface 3D will only work in the first dimension even if an 4D axis is activated, we are working on the Surface 3D update to reflect the 4D changes.





MTune 1.108

A test version of the new Power management system added, which replaces the old After Launch Power Limit (ALPL) system.

Ford Focus RS 2010 CAN implementation.

Rover V8 trigger system.

New injector presets for Atomic3 injectors.

Use TPS input (for E-Throttle engines) as other 0-5v function.

Graph view of tables.

Better and improved AIN filters (internally).

No trigger errors during cranking, will instead be displayed after engine cranked (if not started).

I limiter on boost (automatic internal table).

EGT sensor filter.

New RealTime Data value: Last stored error code.

New axis selector dialog for tables. All available values can now be used as axis sources.

Adaptive trigger modes (for light engines with cranking problems).

Shorter internal debounce.

Labels on all output functions in output config: Sinking, H-bridge and 12V driving).

Predefined E-Throttles added: Audi S3/A4, GM LS7, Coyote 5.0.

Max time on shiftcut removed and replaced with table control instead.

Option to have the log window always on top added.

Option to allow up shifts even when the max gear is engaged for sequential transmissions.

Improved the lambda controller functionality during/after shift cuts (with sequential transmission).

Bug fix: Search function in some cases stopped responding.

Bug fix: MTune crash when clicking on "error codes" in the top of MTune in some cases.

Bug fix: Firmware update dialog sometimes appeared behind the main MTune window improved.

Bug fix: Creep output stuck at 40% duty regardless of settings. Fixed.

Bug fix: Bluetooth password reverted to default 123456 if loading a previously saved tune file before connecting to the ECU. Fixed.

Bug fix: PW on injectors in RealTime Data, Output states was wrong when fuel cylinder adjustment was activated. Fixed.

Bug fix: Greater than condition did not work on DIN channels. Fixed.

Bug fix: Sometimes condition values did not match actual values when opening old tune files. Fixed.



After Launch Power Limit (ALPL) users, check your settings since some of them are deprecated and moved into the new Power management system instead



Download here.

Release date: 2017-10-20





MTune 1.107

Added fuel pressure inputs that can calculate the differential fuel pressure and use that for injector compensations.

Added a search function to quickly find output functions and RealTime data values.

Viper V10 and odd-fire wasted spark support.

User CAN output. Configurable CAN messages.

Added RealTime data value for used injector deadtime.

Added tabs with RealTime data values for different tuning tasks.

Injector deadtime can be a 3D table.

Dwell can be a 3D table.

Ignition trim per cylinder.

Shiftlight per gear.

Option to turn off bluetooth.

Advanced warning system; Moved the settings pages to limits/warning and added options for engine cut only on certain channels.

Fixed a bug with the ”tune notes”.

Fixed a bug with the second stage N2O activation.


Download here.

Release date: 2017-08-24





MTune 1.106

Support for MaxxECU RACE.

BMW M62 cam/vanos trigger.

Honda J35A3 trigger.

Specify number of injectors on each outputs and injectors per cylinder.

Filtering for IAT and CLT sensors (on by default).

Afterstart idle control can be a table.

E-throttle, option to switch PID settings below the rest position.

Selectable F-key shortcuts for all settings pages.

Autotransmission: Second shift target tables activated by DIN.

Autotransmission: Function to control min and max gear for each shift table.

Autotransmission: Option to select a different gear while the launch control is active.

Added the ability to activate individual extra tables instead of all of them.

Timers: Add functionality to count back.

Boost limiter from a table instead of fixed value.

User outputs: Added hysteresis functionallity.

User outputs: Compare two variables in functions.

User outputs: More conditions, up to 5 on each output.

User outputs: Trigger 2 input functions from 1 user output/internal output.

Tables can be setup to not use interpolation (step mode).

Automatic calculation of drive shaft RPM from wheel speeds.

Selectable trigger mode for the trigger oscilloscope (home signal/trigger error).

Calibration options for the EGT inputs.

Button debounce function (on by default).

WBO 1 and 2 as axis source.


Download here.

Release date: 2017-07-04




Earlier releases not showed here yet, check for older changelog