This is a step by step guide on how to use your new M-Tuner software flashing suite for your Porsche Turbo, 911 Carrera or 718! Video and text are provided below to assist you. If at any time you need assistance, please call our office (949.444.2150) or email us at email@example.com
Step 1. Downloading M-Tuner. First you will get the M-Engineering cable and box. You will need to download the latest version of M-Tuner from https://www.m-engineering.us/pages/downloads and install it onto your laptop. This is only compatible with PC based computers or Mac’s running on boot camp or something similar.
Step 2. Send your calibration information to M-Engineering. Next after installing M-Tuner onto your laptop, you will need to connect the M-Engineering dongle into your OBD port.
The port can be located here:
Next you will need to use M-Tuners “Read Info” button to get very important details that we will need to send you the correct calibration files for your car.
Once you click that button it will the save the info that we need on your clipboard to be able to send you the correct files. It will have a dialogue that looks similar to this:
Please open your email and send an email to firstname.lastname@example.org and in the Topic Line tell us what type of car and customer name such as “ 992 Turbo S, Tom Smith”. Once you have done that in the subject of the email if you hit “Ctrl+V” it will paste this info in. Please also include any vehicle modifications and what octane will be run in the car. You can then send the email to us! Once we receive it you should get a set of files with in 24 hours but most likely will be much faster if during business hours.
M-Engineering also has unique custom features for your Porsche (no charge, available upon request). These are designed from custom code and are not available from other tuning solutions. If you are wanting to add any of these items below, please do so in your calibration request email.
Raise Rev Limiter
PSE Exhaust Valve Modifications (true ON or OFF function, no need to buy a standalone PSE valve controller)
Stationary Rev Limiter Removal
Loud Cold Start Elimination
Auto Start/Stop Elimination
Removal of pops and burbles in sport mode
Step 3. Applying your license
Once you get an email from us with the tuned files you will also get a license key.
Once connected you need to open M-Tuner and use the supplied license key. This will allow you to have full access to the range of functionality of M-Tuner. You will go to “Add License”
And then put your name and paste the license key in. Be sure that the key does not have any spaces in front of or behind it when you paste it in or else it will give an error.
Step 4. Flashing Your ECU
*During the flash process, the vehicle must be in the on position but the engine off and not running*
A battery tender is highly recommended during flashing. Do not attempt to flash your vehicle if your battery life seem low or you battery power errors on the dash. An insufficient charge can lead to a failed flash!
File Types in M-Tuner
M-Tuner(C) - These are calibration files and are the more common file type you will be encountering. When doing calibration revisions for remote tuning these will be the type of files you will be flashing.
M-Tuner(F) - These are full binary files that are used for large feature updates! M-Tuner(F) is what also will be needed to recovery an ECU in the unlikely event a flash fails for any unforeseen reason.
Initiating a flash
Flashing is a straight forward process that can take between 90 seconds to 6 minutes depending on the file type. Simple on screen prompts guide you through the process. C
Open M-Tuner and connect the OBD M-Engineering dongle to your PC via the included USB cable. The other end connects to your vehicle via the OBDII port. If you have a stable connection the “Flash ECU” button (1) will now be in bold and no longer grayed out.
Turn the vehicle to the on position but do not start the engine. A simple way to know you’re at the right point is if the tach is showing but the engine is not running. This state can be reached simply by pressing the start/stop button with your foot off of the brake pedal.
Click “Flash ECU.” (1) A directory will appear. Select the file you’d like to flash and open it.
A battery tender is highly recommend, particularly if flashing a M-Tuner(F) file.
A confirmation window with map notes will now appear. Click yes to proceed. No to abort.
The console (2) will now display information as the flash process progresses.
As the vehicle enters the proper flash state all CAN BUS traffic will stop and modules will shut down.
You may see some communication errors regarding certain modules displayed while gaining security access, this is normal.
Once access is granted the flashing procedure will commence and a completion percentage will update in real time.
As the flash is wrapping up you may again see some communication issues with certain modules, again this is normal.
When the flash routine is finalizing modules will come back online and alarms may once again sound. This is normal.
When prompted cycle the key off and on and click ok.
The flash is now successful and you’re all set! See special precautions at the end of this section for other important data.
It’s possible for the fuel gauge, TPMS, steering wheel, or other systems to show errors after the flash process. There is nothing to be alarmed about. You can start by performing a “Clear Faults” action via M-Tuner. Driving around the car for a few miles and insuring full lock to lock with the steering wheel can help clear these faults as well. They just need some time to reset and relearn.
In the very rare instance a flash were to fail due to low battery voltage, turning the car off during a flash, etc, we have built a recovery mode that can flash your ECU even if the flash was inhibited while in progress.
Now, if for any reason discussed above the flash fails you can now simply flash your M-Tuner(F) file to the vehicle and it will recover and you’ll be on your way.
Precautions During and After Flashing
After the first engine start following a flash the idle can be unstable and the lambda sensors will take 2-3 minutes to come back on line. During this time special care should be taken to not drive the car hard as closed loop fuel corrections will not take place. Simply idling it for 5 minutes after a flash is generally sufficient, however a good way to tell if the lambda sensors are active is to monitor short term fuel trims and lambda for each bank. If short term fuel trims are at 1.00 then your lambdas are not online yet. This is particularly good to know if you are tuning the car remotely on the dyno.
It is ideal to keep a battery tender on the vehicle while flashing. Insufficient supply voltage to the ECU may result in a failed flash.
Take special care to not walk away from your vehicle with the key while it is flashing. This may cause the flash to fail.
Ensure your laptop has a sufficient charge or is hooked to outlet power before initiating a flash. If the laptop dies during the flash it may result in a failed flash.
Since all CAN traffic is silenced it is wise to also disconnect or power down any ancillary CAN devices which may be hooked up. e.g. radar detectors, logger dashes, etc…
Open M-Tuner and connect the OBD dongle to your vehicle and PC via the supplied USB cable.
If you have a profile open and a good connection to the vehicle “Start Datalogging” and “Clear Faults” will be in bold and no longer grayed out.
“Start Datalogging” will now begin displaying live data in the monitor panel and your logging speed will be displayed near the bottom.
Whenever you start to monitor a datalog is created automatically. When you first datalog a folder called “Datalogs” will be created in the same folder as M-Tuner. This is where all datalogs are saved.
Datalogs are saved as both a .csv and a .ldat.
.csv files are files you are welcome (& encouraged) to review. Knowing what to look for in datalogs can be a great tool in early detection of an issue.
.ldat files are encrypted files that contain proprietary calibration data.
We are always available to review datalogs.
If you have a datalog you’d like us to review shoot us an email at Info@M-engineering.us with the subject header “Porsche Log Review” Please be sure to also include your VIN in the email.
Our Datalogging Parameters page can help you make sense of most vital monitors.
If we send you an LCFG2 file for logging please put it in the following folder:
Drop it in there and then when you open M-Tuner be sure to select in in the box at the bottom left that has a drop down.
Read & Clear Faults
The “Read & Clear Faults” buttons allows you to read Porsche specific faults in the DME as well as clear faults in all modules.