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#Diy ecu flashing full
the ECU has full control to protect your engine against knock.īut back on topic.
![diy ecu flashing diy ecu flashing](https://www.team-bhp.com/forum/attachments/technical-stuff/1681596d1506962548-ecu-remaps-about-tools-software-tuners-screenshot_20171002221148417_com.android.chrome.png)
This is why some power derating may be felt on lower octane gas. This reflash is safe as all engine protections have been left intact. This reflash version is the most aggressive currently offered by Precision Sports for MSX150 and MSX110 using premium pump gas and also using the stock K03 turbocharger.
![diy ecu flashing diy ecu flashing](https://i.ytimg.com/vi/Q0RB6OfPo_4/maxresdefault.jpg)
So in essence, if a reset would have fixed the problem, the relearning procedure will be equally as effective. This "learning process" is an alternative to a reflash (or reset) and given enough time will accomplish the same result as a reset would have.
#Diy ecu flashing code
The goal is to get the engine to operate under boost without a trouble code present long enough for it to start to learn the correct boost control parameters. The key is not to operate in a mode that causes the over boost code to show up as this will undo the learning process. In your case the suggestion was to run the boat above 3000 RPM at something higher than 50% load for a long period of time. The other means to get the ECU to learn the correct parameters is to operate the vehicle throughout the range of operating conditions without setting a trouble code. Unfortunately there's no other way to force this reset happen other than a reflash. A side-effect of reflashing the ECU is that it causes all the learned values to reset to their "default" settings which often times eliminates the "learned bad behavior". The the concept of a reflash fixing some problems does have some validity although it has nothing to do with reprogramming the ECU. The scenario described to me has to do with boost control adaption where the engine controller "learns" control parameters (wastegate solenoid duty cycle versus boost pressure, etc.) when there's a fault in the system, (boost leak, bad sensor, etc.) and when the fault has been fixed, these learned parameters are incorrect & can cause trouble codes to set when there is no longer a problem. I have a quick response back from some people who still remember the system & it did reveal some potential. I got the follwing info from a guy that was involves in the ECU programming for the MSX150. and not required to achieve the results I am looking for.
#Diy ecu flashing software
Modifying the software is out of my league. The above is all what is really needed to build a good custom Eeprom image. The maps & function I can access and custom tune are:Ģ- fuel correction at startup (warming up),ģ- wot fuel map and idle lambda target value,ĥ- ignition timing correction versus: a-) boost, b-) air intake temperature, c-) coolant temperatureġ1- ETB position versus load (anti-cavitation feature)
#Diy ecu flashing serial
I have also developped the required serial communication protocol and checksum recalculation to safely reflash these ECU's with custom tuned maps. It took me nearly 8 months (5/31/09) to achieve full decoding of the ME7.4.4 ECU Eeprom memory and assemble hex code into relevant maps.