Quote:
Originally Posted by Poochie
Eventuri yes, I know it's doesn't throw a CEL, since it's practically a close set-up anyways and I can't speak for CTS intakes.
You believe what you want, it's your car. But before you doubt me, you should educate yourself on the subject.
Factually, an open intake does cause a CEL due to MAF sensing a surge of air not prevalent to the stock mapping, so the vehicle throws a code because it assumes there is a defect in the system. It's not that they're essentially a bad product, it's just the nature of open intakes on BMWs.
I went cheap before, got an open intake and my first WOT I had a CEL. I contacted the manufacturer and he said "you need a tune" 
After some research, I learned that BMW MAF sensor is sensitive to open air intakes. The only way around a CEL is a tune to disable the MAF sensor.
Any close setup will mimic a stock air flow, thus no CEL. |
Thanks for the helpful advice.
Let me add to your research - the CTS intake, which is an open intake, has now done 8000km on my car and not thrown a CEL.
I previously ran a BMS open intake on my F10 535i and that also did not throw a CEL. But I note that the BMS intake for the M2 does - so go figure.
So not all open intakes are the same.