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im sorry dude. always remove ur tune no matter what. even if they didnt get any codes, it's obvious they see the tune inside the ecu.. i don't think it's JB3 that caused your pump to fail since we already know they are crap to begin with but having the tune sitting in there just calls for trouble.
i would call AAA to tow it back to my house or shop, remove everything b4 taking it back to BMW.
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