ECU is in the car...dealer needs to re-set?????
03-31-2003, 08:31 AM
#1
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ECU is in the car...dealer needs to re-set?????
Got my ECU from Hoppen, used, 1 year warranty, from a super low mileage '00.
Now that it's in the car, it needs to be "re-set" the ECU to this car. Not expensive to do and it makes some intuitive sense, but....
Does this make sense or no? Anyone out there with this info?
TIA,
Tom
Now that it's in the car, it needs to be "re-set" the ECU to this car. Not expensive to do and it makes some intuitive sense, but....
Does this make sense or no? Anyone out there with this info?
TIA,
Tom
03-31-2003, 08:44 AM
#2
AudiWorld Super User
I don't know exactly what you mean
How is it reset? I imagine with the VAG 1552 or ross-tech software.
I do know that you can only buy an ECU from Audi if you a registered owner, this is due to the fact of all the people buying extra ECU's for their car who have turbos and have been chipping them. This way they have to give there old one back and they get a new one.
Many people were swapping them in and out when they would make a trip to the dealer.
I'm going out for a little bit, when I return, I can look it up for you.
Do you have to bring it to the dealer to have it reset?
pw
I do know that you can only buy an ECU from Audi if you a registered owner, this is due to the fact of all the people buying extra ECU's for their car who have turbos and have been chipping them. This way they have to give there old one back and they get a new one.
Many people were swapping them in and out when they would make a trip to the dealer.
I'm going out for a little bit, when I return, I can look it up for you.
Do you have to bring it to the dealer to have it reset?
pw
03-31-2003, 11:04 AM
#7
AudiWorld Super User
Recoding is a breeze
Yes, when the ECM is deenergized, it needs to be recoded.
You do this under the engine control module, "07" code control module.
If you have a AUX or AKB engine, these are the variables:
First 2 digits (country/emission standards):
05 - USA, Transient Low Emission Vehicle
07 - USA, Low Emission Vehicle (probably what you have)
Next digit (powertrain/additional systems):
5 - All wheel drive without ESP (what you have)
7 - All wheel drive with ESP
Next Digit (transmission):
5 - 5 speed automatic transmission (ZF 5HP24)
Next Digit (type of vehicle):
3 - A8 and S8
So your ECU coding would be: 07553
That's it! Is your ross-tech software working? If so, recode it yourself, would take seconds!
The AYS engine has slightly different coding, but it appears all of them came with ESP and your car does not have it as I recall.
You do this under the engine control module, "07" code control module.
If you have a AUX or AKB engine, these are the variables:
First 2 digits (country/emission standards):
05 - USA, Transient Low Emission Vehicle
07 - USA, Low Emission Vehicle (probably what you have)
Next digit (powertrain/additional systems):
5 - All wheel drive without ESP (what you have)
7 - All wheel drive with ESP
Next Digit (transmission):
5 - 5 speed automatic transmission (ZF 5HP24)
Next Digit (type of vehicle):
3 - A8 and S8
So your ECU coding would be: 07553
That's it! Is your ross-tech software working? If so, recode it yourself, would take seconds!
The AYS engine has slightly different coding, but it appears all of them came with ESP and your car does not have it as I recall.