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vix_98_318ti · 07-13-2006, 01:11 AM

The error code I get is 0A - which is related to the Pre-Cat O2 sensor. I was getting really poor mpg (about 15/gl) then I replaced my spark plugs with Bosh 4+. The the O2 sensor was replaced, which did improve my miles slightly. But the stupid "engine light" has come back a couple of times. What exactly did you replace Etienne (diffa spl. unit)? Can you explain that a bit further...not sure what you mean and how much did it cost you and do I have to take it to the mechanic?

thanks

07-13-2006, 01:11 AM	#4
vix_98_318ti Member Join Date: Dec 2003 Location: Los Angeles, SoCal Posts: 77 iTrader: (0) Photo Gallery	The error code I get is 0A - which is related to the Pre-Cat O2 sensor. I was getting really poor mpg (about 15/gl) then I replaced my spark plugs with Bosh 4+. The the O2 sensor was replaced, which did improve my miles slightly. But the stupid "engine light" has come back a couple of times. What exactly did you replace Etienne (diffa spl. unit)? Can you explain that a bit further...not sure what you mean and how much did it cost you and do I have to take it to the mechanic? thanks