OBD Mods
 

Okay, so if I did know a lot about this topic, I would know about this, but I don't! hahah.

I need to know if I can modify anything on my ES300's ecu through the OBD II connection in the dash. I have the monitoring and diagnosis software, but I don't need to see the same code over and over, becasue I already know what's wrong with the car.

I need to know if it is possible to reflash or tune an ecu thru the OBD slot. Also, what program would I need for this. Thank u so much.