S4 / RS4 (B5 Platform) Discussion Discussion forum for the B5 Audi S4 & RS4 produced from 1998-2002

Anyone tried APR's Immobilizer Clone utility?

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Old 07-29-2001, 08:46 PM
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Default Anyone tried APR's Immobilizer Clone utility?

From APR's website:

"...each time a new ECU is 'adapted' for operation in a particular vehicle using the factory procedures, the car creates a new internal code that is compared to a code stored on the ECU. Hence, if you adapt a new ECU to work in a vehicle (using the factory procedure) you must readapt the old ECU if you wish to put it back in the car. Using APR's Immobilizer Clone utility, you can create a virtual clone of an ECU's immobilizer. This way, if you ever need to change between the original and the new ECU you simply swap the ECU into the car - no immobilizer re-adaptation is required."

I don't quite understand what is meant by "adapt an ECU to work in the car". If I plug in a new ECU, do I need to "adapt" it to make it work? APR's ECU install instructions only says to plug it in and do throttle adaptation by turning the ignition to on for 3 minutes. I'm also concerned about the car's "internal code".

-Ed
Old 07-29-2001, 08:59 PM
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only applies to immobilzer cars (A6 and TT's ...NOT the US S4)
Old 07-29-2001, 09:14 PM
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Default Thanks frank. Should have searched first. Just did one and came across the same answer from you...

back in May. When did they fix the search engine? It's actually useful now.
Old 07-30-2001, 02:24 AM
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Default Don't the 2001.5 S4s come with Immobilizer that

needs to be cloned?
Old 07-30-2001, 10:03 AM
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no
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