Hi everyone. This is my first post. I have a 2003 Protege ES 2.0 non turbo and I just ordered a used ecu off of ebay. I have been having a random missfire problem and a friend that had a 99 Protege said she had the same problem and they replaced the ecu and it fixed it.
Ok, my question is where is the ecu located on my model and are there any special instructions on changing it or do I just unplug one and plug in the other. Someone mentioned flashing the new ecu, how would i do this and is it necessary?
Any help is greatly appreciated, thanks guys.