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Old 03-25-2012, 07:27 PM   #21
Minchkin
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Motorola a while back attempted to do the same thing. I am not sure how they did it, but some developers were able to get around it. I am sure someone will circumvent it. It may just take time. But yeah. It is a deal breaker. If I can't even tune it, I don't want it. Bums me out too. I thought it looked awesome.
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Old 03-25-2012, 11:07 PM   #22
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Funny, the ST management has been tuned already by a hand full.
Tuners already have 2013 ST's and have cracked the tuning protection?

Are you sure?
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Old 03-25-2012, 11:20 PM   #23
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Originally Posted by Phokus View Post
Wait.. so what if you buy a spare unit and keep your original one stock safe somewhere.
Break/tune the spare one, install that one and have fun.

Anything happens put the stock one you kept safely somewhere back?
That's what I was thinking, swap the stock piece rather than mod it.
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Old 03-25-2012, 11:23 PM   #24
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W/O reading on this, I want to say it's not a big deal. I believe what the protection is for is to lock anyone out from 'sucking' the raw code from the box ... as would be done by most grassroots tuners. I'd be quite sure the ECU can be tuned via 'update' methods. Ford would almost have to leave some type of way for their employees to update emissions data and such if they need to. I can't see the point of swapping box's to update, too much down time.
It's not that the PCM cannot be programmed/updated thru the diagnostic port.

The protection mechanism requires a valid RSA signature of any code that is downloaded during OBD programming. The RSA signature has a 1024 bit key that makes it virtually uncrackable.
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Old 03-25-2012, 11:38 PM   #25
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Wait.. so what if you buy a spare unit and keep your original one stock safe somewhere.
Break/tune the spare one, install that one and have fun.
Many European cars now have "security bolts" (or "anti-tamper bolts") for the PCM that have to be drilled out or cut off.

I'm not saying that the PCM can't be removed but it would be a PITA. This method is also used to determine if the PCM has been physically tampered with.
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Old 03-25-2012, 11:45 PM   #26
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Such modifications could cause damage to the powertrain and/or void the factory powertrain warrant.
That's nothing new. How many people have seen the video of the guy that removed the factory speed limiter on a v6 mustang?

YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.
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Old 03-25-2012, 11:47 PM   #27
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Quote:
Originally Posted by Phokus View Post
Wait.. so what if you buy a spare unit and keep your original one stock safe somewhere.
Break/tune the spare one, install that one and have fun.

Anything happens put the stock one you kept safely somewhere back?
Thats exactly what the Caliber SRT community does.
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Old 03-26-2012, 03:23 PM   #28
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That's nothing new. How many people have seen the video of the guy that removed the factory speed limiter on a v6 mustang?

YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.
Holy crap.
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Old 03-26-2012, 07:19 PM   #29
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Wow, that Mustang driveshaft failure must have scared the CRAP out of the person who did that. I suppose that's a prescient reminder that one must consider factors like that before 'unlocking' the electronic control. There's more difference between a V6 and V8 Mustang than just the engine. With a car like the ST, though, you're getting a car that has parts specified for higher power and higher speeds compared to a regular Focus, but there's always a limit... and I'm sure someone will find it.
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Old 03-26-2012, 07:31 PM   #30
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Wow that driveshaft failure was nuts that.
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