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2006 Mazdaspeed6 intermittent lack of power concern
-new PCM calibration is now available on IDS.

Cal. Spec.
Filename is SW-L3K9EJ000

NEW PCM CAL.
P/N is L3K9-18881J


Fed Spec.
Filename is SW-L3M8EJ000

NEW PCM CAL.
P/N is L3M8-18881J

Should any 2006 Mazdaspeed6 customers complain about an intermittent
lack of power concern, please update your IDS tool to software version
42.9 P6 and reprogram the vehicle's PCM to the latest calibration
(L3K9-18881J).

What does this mean?
Any power loss issues you experience, please call your dealer immediately and ask them if they have updated to 42.9 P6, and if not, if they would please check the mazda tech line for information about

Intermittent Lack of Power Concern

It takes some dealerships sometime to check the tech line...so please call PRIOR to visiting. Encourage them to check the tech line until they get the information about the new software download. The key words are the bolded and enlarged text above.

Do note that there is no information on "exactly" what this fix does. Those with boost gauges, please record data BEFORE and AFTER the fix. It will be invaluable to figuring out what changes mazda is making. Anyone with a data logger, please capture data prior to and after the fix as well.

If you have NOT had POWER LOSS...I'd AVOID getting the fix until more information on what it actually does is available. Get the fix if you are having issues, but avoid getting it if you haven't had any.

Here is the info from the previously pinned sticky on what the powerloss is.

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 knock?
Knock, or pinging/denonation, is when the unburned fuel/air mixture in the cylinder combusts prior to the flame front (of the actual combustion process) completes. This causes an interruption in combustion due to the two shockwaves intersecting and generally results in a metallic "ping" sound.

Why is this occuring the MPS 6?
The main problem seems to stem from the lack of pure 93 octane gas in many areas of the United States. In Japan, 93 octane gas is available in all areas, but this is not the gas in the United States. Higher octane gasolines reduce the chance of premature detonation by increasing the activation energy required for combustion. (Simple explanation). This help prevents a mixture of air/fuel from detonating prior to the flame front (from the spark).

Other causes of detonation involve excessive combustion temperatures, (which can be related to cooling issues with either the air charge or the coolant system), timing advanced too far, and running too hot a sparkplug.

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.
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Here is an uncluttered link with the information (in case this thread goes beserk)
http://forum.mazda6tech.com/viewtopic.php?p=43549#43549
 

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Sweet they actually stayed on schedule.
 

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crossbow again you are invaluable
 

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I sure hope they didn't cut any boost like the flash Mazda used on one member's car.

Good to see Mazda isn't wasting too much time with this car.
 

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yeah, can't wait for others to post results. I had powerloss twice, but I haven't seen it ever since I tried putting in 100 gas (that was like 2 months ago), so I think I am going to wait on the flash.
 

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If one were to drive into the US with a Canadian MS6 could it be flashed? Or would you catch a bunch of crap about it from the dealer telling you to go back north?
 

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I've only experienced powerloss three times, but that was all in the last month with the car having over 3k miles. i'm tempted to get the flash, but concerned about the 2nd & 3rd order effects.
 

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04 STI had problems with pinging due to retarded algarhythm where the ecu would add timing till it pinged and retared and over again. I hear they pulled mad timing on them and lost some power in the process.
 

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I was called by my dealer that sold the car and they sadi they had the update. My question is if the car does feel slower (I do not have a boost gauge so I can not see if they changed anthing with boost) can the old program be flashed backed into the ECU? I was ready to do this (although I have had power loss a few times, restart always fixed it) but now I am thinking maybe we should wait and see what Mazda did. Give me your opinions please?
 

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I was called by my dealer that sold the car and they sadi they had the update. My question is if the car does feel slower (I do not have a boost gauge so I can not see if they changed anthing with boost) can the old program be flashed backed into the ECU? I was ready to do this (although I have had power loss a few times, restart always fixed it) but now I am thinking maybe we should wait and see what Mazda did. Give me your opinions please?
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dealerships rarely if ever reflash back to original spec. most likely, the reason being that they wont reflash an ECU simply for your preference, but only if u have an issue. that's why they want to be able to reproduce the powerloss problem before they update. thats how all TSB's work. if u want to revert to the old ECU spec, u'r gonna have to replace the ECU.

if u have powerloss, i suggest u get the update.
 

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Dumb question, but as I read the info above it seems to me like this fix is more of a patch for the real problem. The real problem is knocking, and this fix is deadening the sensor to allow more knocking until the engine goes into limp mode.

Couldn't this additional allowed knocking damage the engine or have long term ill-affects on the engine?
 

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More Cowbell (where did you get that screen name anyway :D ) are you saing the reflash will pull timing so it would not have a chance to detonate? If that is the case then I am going to have less HP
 

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you can possibly gain hp, depending on how its tuned. We won't know untill someone hits a dyno. In mazdaspeed proteges case they added timing because it was hesitating.
 

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More Cowbell (where did you get that screen name anyway :D ) are you saing the reflash will pull timing so it would not have a chance to detonate? If that is the case then I am going to have less HP
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He does not know. He is just guessing. Nobody will know until someone gets the reflash and then gets dynoed.

Either way, once this is fixed, it will allow for more consistant dynos and will allow for more potential later on before the car goes into limp mode.
 
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