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What is involved with reflashing a ecu?

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Old 08-21-2023, 08:08 PM
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Default What is involved with reflashing a ecu?
I have a 2002 XK8 that I have purchased a replacement ECU for from a ebay source. As I understand it it needs to be matched to my VIN# before it will let me run it. It cranks, but won't start. What is involved to do this?
 
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Old 08-22-2023, 08:24 AM
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A replacement ECU for a 4.0 XK does not require REFLASH.

The VCATS needs to match and then an IMMOBILIZATION SETUP needs to be performed.
 
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Old 08-23-2023, 03:41 AM
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That is wonderful news. Can you elaborate a little on how this is done? I am lost here.
 
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Old 08-23-2023, 09:01 AM
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An IMMO SETUP is performed with WDS/IDS or similar diagnostic equipment.

SETUP and CONFIGURATION tab is selected and follow the 'onscreen-prompts' to get the replacement ECM configured to the vehicle CAN BUS.
 
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