I would like to know if its possible to reflash it (tsx 04 5at) and if someone can tell me how it works...im kinda new with cars. thanks

 

I think you have to buy an 06 plus ecu not sure though

 

You have to have it done through a dealer. You keep the same ecu, just have to remove the immobilizer and the ecu and bring it to a dealer, or just bring your car to the licensed dealer and they will do it for you. Then they'll ship the ecu to the one relfash place which is in California I think, "flash it" then send it back and reinstall, Takes about 3-5 days and I'm on the east coast. Here's where you can search for a licensed vendor http://hondata.com/dealers.html