Dpf delete ?
Logistics Pro
Joined: Nov 2001
Posts: 3,787
Likes: 102
From: Georgia
Yeah, haden't thought of that. But it sounds right to me.
Posting Guru
Joined: Jul 2005
Posts: 1,006
Likes: 0
From: San Jose, CA
Here's my $0.025. If I was the PCM firmware engineer, I'd have log registers that record the hour meter or odometer reading of the last PCM update(s), the last regen(s), the last reset reason(s) of the PCM, TCM, etc, and peak values of all sorts of parameters--they won't take up much space. To prevent tuners from messing with it, I can simply encrypt those log registers and/or scatter them around throughout flash. Nonvolatile flash memory is cheap these days, so this is easy to do.
It seems Ford can see when the last few regens occurred and how long they were based on some comments by someone who took their truck in to diagnose some regen issues.
If the last PCM update is logged based on hour or odometer, it'll be a dead giveaway too. They'd simply match it with when they think Ford did the last update. To make life easier, they could also record the CRC's of the last calibration(s). IF they don't match what Ford published, then....
The reality of it is, if a numb-numb like me can think like this, I'm sure the Ford engineers did so and figured us out a long time ago
It seems Ford can see when the last few regens occurred and how long they were based on some comments by someone who took their truck in to diagnose some regen issues.
If the last PCM update is logged based on hour or odometer, it'll be a dead giveaway too. They'd simply match it with when they think Ford did the last update. To make life easier, they could also record the CRC's of the last calibration(s). IF they don't match what Ford published, then....
The reality of it is, if a numb-numb like me can think like this, I'm sure the Ford engineers did so and figured us out a long time ago
Hotshot
Joined: Nov 2000
Posts: 11,591
Likes: 14
From: Pflugerville, tx
I have a spartan I no longer want.
my email is my userid at gmail.
Sam
Logistics Pro
Joined: Nov 2001
Posts: 3,787
Likes: 102
From: Georgia
Here's my $0.025. If I was the PCM firmware engineer, I'd have log registers that record the hour meter or odometer reading of the last PCM update(s), the last regen(s), the last reset reason(s) of the PCM, TCM, etc, and peak values of all sorts of parameters--they won't take up much space. To prevent tuners from messing with it, I can simply encrypt those log registers and/or scatter them around throughout flash. Nonvolatile flash memory is cheap these days, so this is easy to do.
It seems Ford can see when the last few regens occurred and how long they were based on some comments by someone who took their truck in to diagnose some regen issues.
If the last PCM update is logged based on hour or odometer, it'll be a dead giveaway too. They'd simply match it with when they think Ford did the last update. To make life easier, they could also record the CRC's of the last calibration(s). IF they don't match what Ford published, then....
The reality of it is, if a numb-numb like me can think like this, I'm sure the Ford engineers did so and figured us out a long time ago
It seems Ford can see when the last few regens occurred and how long they were based on some comments by someone who took their truck in to diagnose some regen issues.
If the last PCM update is logged based on hour or odometer, it'll be a dead giveaway too. They'd simply match it with when they think Ford did the last update. To make life easier, they could also record the CRC's of the last calibration(s). IF they don't match what Ford published, then....
The reality of it is, if a numb-numb like me can think like this, I'm sure the Ford engineers did so and figured us out a long time ago
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bholicz
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