ZPOST - View Single Post - Terrible MPG

pokeybritches · 04-11-2014, 04:36 PM

Do you have a way to check your AFR on the pre-cat O2 sensors? If there is something wrong, it should be apparent there. If AFR is off it "should" throw a code, but I never place much faith in the OBD2 system.

04-11-2014, 04:36 PM	#3
pokeybritches Colonel 479 Rep 2,782 Posts Drives: ESS/G-Power Z4M, VF Z4, 996tt Join Date: Sep 2009 Location: Los Angeles iTrader: (12) Garage List 2006 BMW Z4M [10.00] 2006 BMW Z4M [8.50] 2003 BMW Z4 3.0i [9.00]	Do you have a way to check your AFR on the pre-cat O2 sensors? If there is something wrong, it should be apparent there. If AFR is off it "should" throw a code, but I never place much faith in the OBD2 system. __________________ VF Engineering Z4 3.0i, ESS Z4M, G-Power Z4M, 996 Turbo
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