Let's start over......
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Joined: Jan 2009
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From: Concord, NC
If the front 02's fail, you have no way of knowing it seems if the rears are shut off. If you are running rich, exhuast leak, etc then there would be no P0420/P0430, correct? Or say in Will's case, what if he had an exhaust leak and had the rear sensors shut off? He wouldn't really know, right? I get how they work, but it seems to me they are there for a reason and should be left alone so you can make sure your exhuast is healthy
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Joined: Nov 2008
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From: Minot, ND
Got everything out of the house, im going to stay on the deck with my favorite set of water wings and trusty Bud Light and watch them build the dike behind my house hopefully they get it done in time...
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From: DFW
My point exactly Pat.
If the front 02's fail, you have no way of knowing it seems if the rears are shut off. If you are running rich, exhuast leak, etc then there would be no P0420/P0430, correct? Or say in Will's case, what if he had an exhaust leak and had the rear sensors shut off? He wouldn't really know, right? I get how they work, but it seems to me they are there for a reason and should be left alone so you can make sure your exhuast is healthy
If the front 02's fail, you have no way of knowing it seems if the rears are shut off. If you are running rich, exhuast leak, etc then there would be no P0420/P0430, correct? Or say in Will's case, what if he had an exhaust leak and had the rear sensors shut off? He wouldn't really know, right? I get how they work, but it seems to me they are there for a reason and should be left alone so you can make sure your exhuast is healthy
IDK what is so complicated about it, again the fronts are the main sensors, if they fail or get bad readings they throw codes, and can throw lots of codes. Rears only monitor cat efficiency, thats all.....
I think I got about 3 hours of sleep last night this is going to be a very long day. 
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From: In a house, in a small town
I know it's been dragging this morning for some reason. 
I think I am going to take an early linch and run some errands.
I think I am going to take an early linch and run some errands.
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From: Burleson/Athens/Brownsboro, TX
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