BMW M3 Forum (E90 E92) - View Single Post

John@BMW · 01-06-2010, 09:17 AM

lots of AFR readings are incorrect because of placement of the sensor in the exhaust.

Those tail pipe sniffers are not the most accurate readings. Its best to have a wideband o2 sensor before the primary cats. Any other way is a waste of time IMO.

01-06-2010, 09:17 AM	#8
John@BMW I can't belive this car is a 4 door family sedan. 66 Rep 385 Posts Drives: 2008 M3 sedan, '96 M3 Join Date: Jan 2009 Location: Atlanta iTrader: (1)	lots of AFR readings are incorrect because of placement of the sensor in the exhaust. Those tail pipe sniffers are not the most accurate readings. Its best to have a wideband o2 sensor before the primary cats. Any other way is a waste of time IMO. __________________
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