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      06-08-2013, 11:41 AM   #12
BQTuning
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Drives: 2012 Z4 sDrive35i M Sport 6MT
Join Date: Nov 2010
Location: bq@bqtuning.com

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Quote:
Originally Posted by bonnie335i View Post
I bought the afe cai magnum force and it threw up a code saying I was running too lean and then I tried tightening the coupler making sure there were no leaks. No matter how hard I tried to secure it, I kept getting the code thrown up. In the end I switched back to stock. Wasted my money
Your Mass Air Flow sensor is probably installed wrong or it is damaged

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