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1998 to 2001 A8 4.2 Swap Compatibility

23K views 1 reply 1 participant last post by  WUBALUBADUBDUB 
#1 ·
I have a 2001 A8L Quattro in beautiful condition with a blown engine as well as a 98 A8 Quattro 4.2 with body damage. I am looking to swap the engine and am just curious if I am going to run into any issues with the wiring harness, electrical components or ECU being a few year older car? The engine code for both vehicles is the same (ACK) but I am just curious if the newer ECU will be able to communicate with the older engine without issues. Any input is greatly appreciated.
 
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