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               Originally Posted by 
              bluecoup  
              Key and ecu have to match, they do pop up on eBay now and again
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         Hello, I was in a hurry and ordered an ecu with a part number of 5vk-8591a-10 where as mine is 5vk-8591a-01. My mechanic said that the lead does not match the one on the bike's electrical installation. Is there a way round this?