Marstro: possible to reflash to stock and avoid detection?

[peb]

I just picked up a b7 quattro sline cab with with 29000 miles. It came with a cpo.

I'd like to chip it, but would like to get some decent mileage on it and take care of any issues that come up before I potentially get tr1'd.

I read someplace else that when apr flashes your ecu, they are able to reset the flash count. Can Maestro do this too?

If so, could I stay stock other than a Maestro stage 1 tune and then, before going in for dealer work, reflash to the *original stock* flash and reset the flash count at the same time?

Can I do something like the above to avoid a tr1 until I've had the car a bit?

Ps. I plan to blatantly tr1 myself further down the road by going stage 3+ along with a manual swap in my cab :)

[Mr. Lahey]

I just picked up a b7 quattro sline cab with with 29000 miles. It came with a cpo.

I'd like to chip it, but would like to get some decent mileage on it and take care of any issues that come up before I potentially get tr1'd.

I read someplace else that when apr flashes your ecu, they are able to reset the flash count. Can Maestro do this too?

If so, could I stay stock other than a Maestro stage 1 tune and then, before going in for dealer work, reflash to the *original stock* flash and reset the flash count at the same time?

Can I do something like the above to avoid a tr1 until I've had the car a bit?

Ps. I plan to blatantly tr1 myself further down the road by going stage 3+ along with a manual swap in my cab :)



I dont know about Maestro but when you buy a APR stage whatever you can by three "modes" stock, 91, 93 or whatever you want. When it goes in for the smog you toggle

check this out
http://www.goapr.com/products/ecu_upgrade_20tfsi_long.html

STAGE 1
Free Trial Software Yes
Calibrations Stock, 91 Octane, 93 Octane, 100 Octane and Valet
Required Hardware None to Meet Advertised Results
Recommended Hardware APR/Carbonio Intake & APR Catback Exhaust


how to switch between modes
Step 1
Press and hold the "set" button on your cruise control. After approximately five seconds, the "check engine" light on your dash will begin to blink once per second. This will tell you that you are activating program one. This blinking sequence will continue for approximately five seconds.

After this five second interval, the "check engine" light will begin blinking twice per second. This will indicate that you have activated the second program. This process is continued to access any remaining programs you may have purchased. (three blinks = program three, four blinks = program four).

Step 2
Once you have activated the desired program, simply release the "set" button. The "check engine" light will stop flashing. Turn the ignition key off for 10 seconds, turn the key back on, and you will be locked in that program until you change it again.

It's that simple


I know that is for APR, as for maestro i dont know. I hope that helps or at least puts you in the right direction

cheers

[mec]

Unfortunately, what this does is revert to an apr stock map, not the actual audi map, It's unlikely that someone will catch it but nevertheless its not an "audi oem" map

[peb]

Unfortunately, what this does is revert to an apr stock map, not the actual audi map, It's unlikely that someone will catch it but nevertheless its not an "audi oem" map

I've seen reports on other forums about people getting tr1'd and having warranty work denied after taking their car to the dealer, even with the apr flash set to "stock". Apparently audi started cracking down. Heck, this wouldn't be *too* hard to check for as it can be detected by just trying to read the tune over the obd port as is done in the initial maestro install.

Anyway, this is why I'm wondering if one can use maestro to put the actual stock tune back and resest the flash counter.. And if so, would that be sufficient to avoid detection.

[rongeur]

There is a thread addressing most of this question. Apparently newer ECU records dates of software changes (flashes) and if they see a date newer than their last recorded flash they know you we're flashed. AFAIK maestro does not go around date recording which is probably innate within the ECU.

[peb]

There is a thread addressing most of this question. Apparently newer ECU records dates of software changes (flashes) and if they see a date newer than their last recorded flash they know you we're flashed. AFAIK maestro does not go around date recording which is probably innate within the ECU.

I think I know the other thread you are referencing, http://www.audizine.com/forum/showthread.php/475455-ECU-software-tune-detection-by-Dealerships-Audi, but it wasn't clear if Maestro was able to rewrite the date and flash count. (Apr claims to rewrite the count at least)

I would think that the date would be innate to the ecu if audi was doing this as a security measure, but it it was originally implemented just for debugging/diagnostic purposes, I can easily see it being able to be overidden. But simply overriding thses would not be sufficient for apr, revo, etc because the tunes would be physically different.

It is my understanding that Maestro can save and put the actual stock tune back though, so, depending on the above, the previous presence of maestro could be undetectable.

I'll shoot them an email and report back.