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XJ XJ6 / XJ8 / XJR ( X350 & X358 ) 2003 - 2009

ECM question

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Old Jul 31, 2024 | 03:59 PM
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Default ECM question
I found out what the problem with my 2004 XJR is. I apparently had a leak and my ECM is toast. My question is, can a used one be re-coded to a different car?




 
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Old Jul 31, 2024 | 04:20 PM
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Yes, it's been done before but it's a tricky procedure. A search on here might turn up a thread or two.
 
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Old Jul 31, 2024 | 04:25 PM
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Have a read through.

https://www.jaguarforums.com/forum/s...rchid=15422955
 
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Old Aug 3, 2024 | 11:54 AM
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Jaguar has info from a few decades ago.
I have only ever installed NEW ECMs when I worked at the dealer years ago.
Never tried a used module.
 
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