BMW M3 Forum (E90 E92) - View Single Post

Hujan · 11-10-2013, 09:52 PM

Most tunes kill the CEL, but the two o2 sensors will still show "not ready." Some tunes may allow you to maintain readiness. Check with your (prospective) tuner.

11-10-2013, 09:52 PM	#4
Hujan Brigadier General 569 Rep 3,742 Posts Drives: M3 Join Date: Apr 2013 Location: . iTrader: (16)	Most tunes kill the CEL, but the two o2 sensors will still show "not ready." Some tunes may allow you to maintain readiness. Check with your (prospective) tuner.
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