hello im new to the evo tuning
just mannaged to read the ecu with ecu flash its a evo 7 chassis with an evo8 engine

previews owner says that the ecu is tuned but i cant seem to find any definitions for it
at the end of the binary file there is a JM9653
from what i searched 96530006.xml seems like it will do the job
and if i inherit the definition for my file the maps seems okish

but i thought is best to ask first before i flash anything back on the ecu

is there a better file i can run on it also i cant really understand he ecu perephery and i need to disable the P0136 cel ( i have the rear o2 removed from the exhaust its just plugged in )

thanks

 

Hello! Welcome to the world of Evo tuning. It's great that you were able to read the ECU using ECUFlash. Understanding the file definitions and finding the right one for your setup can be challenging but important for proper tuning.

The "JM9653" you mentioned at the end of the binary file is likely the hardware ID or part number. It's common for tuners to modify or customize the ECU software, so finding a specific definition for your exact setup might be difficult. However, using a similar definition file like "96530006.xml" that matches your hardware ID could be a good starting point.

Before flashing anything back onto the ECU, it's essential to carefully review the maps and parameters to ensure they align with your modifications and goals. Pay attention to fuel and ignition maps, boost control, and other relevant settings. If the inherited definition seems reasonable and the maps look okayish, it could be worth trying it out.

Regarding the CEL (Check Engine Light) for P0136, which indicates a fault with the rear O2 sensor, you'll need to disable or bypass the rear O2 sensor monitoring. This can be done through the ECU tuning software by modifying the appropriate sensor settings or disabling the specific code related to P0136. However, keep in mind that removing or disabling emissions-related components may have legal implications and can affect the vehicle's environmental performance.

It's worth noting that Evo tuning can be complex, and it's important to have a good understanding of the modifications and their impact on the engine's behavior. If you're unsure or uncomfortable with the tuning process, it's recommended to seek assistance from experienced tuners or join online Evo communities where you can find more specific advice and guidance based on your setup.

Always take caution when making changes to the ECU, and ensure you have a backup of the original ROM in case you need to revert any modifications.

 

thnank you

i actually have tune numerous vehicles but never an evo
i own a dyno too so tuning is not a problem and the def i used to inherit from looks ok but i had to ask to be sure

thats why im asking for the definition file of this ecu