running rich has nothing to do with running what kind of octane.iluvmacs said:Doesn't the car run rich enough that you should never have to run premium gas, or does the MP3 ECU lean it out a bit?
tgromer said:So can i just swap the ecu out of a mp3 with my mp5...is that the same as having it flashed..im not sure if i understand...also i was having trouble with my auto tranny...so i swapped the valve body and soliends out of a focus tranny..seem to pick my car up a little??
SkinnyJoint said:so what kinda power gain are we talking from this? just the 10 hp mentioned earlier?
You are correct, sir. Mazda techs reflash the MP5 ECU using factory codes. I had mine done using selected MP3 codes that primarily increase the timing. Butt dyno sez it makes a difference with a 5-speed. No chassis dyno yet.jonlong said:What does it mean to "flash" an ecu? Does it mean to reprogram it with the info from another ecu, like the mp3's?