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Discussion Starter · #1 ·
I have problem with my car bmw m5 e39, having put the ECU chiped , my car worked 2 days,my car take on, and directly shut down 2-3 second.What can this happen ???????I not have problems in advance,,,,,,,,
 

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Agreed. If you chipped it and then 2 days later started having problems, go back to stock and see if that fixes it.
 

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I removed the battery cable many times,????????
When people make suggestions, you need to ACKNOWLEDGE their question, and either answer it or explain your reasoning. It is not going to be helpful for you to simply post here with comments and questions as if there is nobody interacting with you.

What type of "chip" did you get? WHAT COMPANY DID THE WORK?
 
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