Originally posted by: OS
Originally posted by: clickynext
Originally posted by: OS
you should find out if they ever fixed the power loss issue
There was a recall for that.
The loss of power is believed to be caused in short by the ECU detecting that lower than 93 octane gas is being used, and automatically reducing the throttle to 33% of input. The flashed ECU should be more tolerant of this.
I'm aware of that much, but their approach is nothing more than a crappy bandaid;
"
What is happening when the power loss occurs?
When the Mazdaspeed 6 detects 1 knock, it cuts the electronic throttle input to 33%. That means if you have the pedal floored completely down, the max the PCM/ECU allows the throttle plate to open is 1/3. Since the throttle is electric, the PCM can completely override any and all driver inputs for the safety of the engine. Those who ever owned a 6 with a bad maf sensor know exactly how this works.
...
What is Mazda doing about this?
Mazda is adjusting the # of cycles it takes the knock sensor to throw the car into 33% throttle mode through a PCM/ECU reflash. The sensitivity is also going to be addressed, but not significantly, as the knock sensor is still there to stop detonation from occuring. The cycles should greatly reduce the # of occurances from owners. This Flash is now available and will slowly populate to dealers across the USA. Please call your dealer and ensure its availability PRIOR to visiting. "
The supposed "fix" just lets the engine detonate/knock a couple more times before it cuts power. lol
I'm not sure what's worse, the power loss in the first place, or allowing more knocks before actually doing something about it.
Either way, the fix doesn't address any actual cause of detonation.