dual exhaust..what to do with o2?

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#16

05-05-2011, 04:24 PM

73FOMO

Fleet Mechanic

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Location: Hartford, AL

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Quote:

Originally Posted by Skinsfan6

I am running true duals with the O2 sensor only on the passenger side ~6 inches below the collector. It has been this way for a year. I have never had a CEL or any change in fuel mileage, etc.

I didn't say that you WOULD get a CEL, but IF you get a CEL. I was making the point it would be more difficult to troubleshoot the problem cylinder if you did. I also pointed out that the side opposite the o2 could possibly run lean without you knowing it....thus the reasoning, IMO, that from the factory they added the little connector pipe so the o2 is picking up readings from both banks.

But.....it will work. No doubt.

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#17

05-07-2011, 01:46 AM

CT1987

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Hi new to thread, but similar problem, I6 300 replacing stock headers with hedman headers Part # 89300, 6 in 2 out and wondering about 02 sensor. currently on little connector pipe in-between. Don't really want to just put on one pipe. Is it possible to wire up 2 O2 sensors to one plug(one on each collector). In theory i think it would work.

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