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      06-17-2015, 03:21 PM   #1
talhagursoy
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Drives: Bmw Z4 sDrive35i
Join Date: Feb 2014
Location: Fairfax, VA

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Question Catalytic- converter conversion

Hope you guys doing well,

2 days ago CEL came on and I replaced my spark plugs. Today CEL lights came on back and I just read the codes it says "Catalytic- converter conversion" and "Catalytic- converter conversion 2" numbers "29F4, 29F5" I took my car to the BMW service when light was gone, they check to car and told me that everything was okay and I just had to update my software. However I do not really think these codes come up because of software update. Does anyone have experience about those codes or those kinds of problems ? My 35i has 33k miles on it.
Thank you!
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