08-08-2014, 09:13 PM | #57 | |
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I have done a little research and even with the antifouler or mini-cat method, some people still have problems with CELs. This seems like a good way to run a catless header and avoid a CEL with no tune, or if you need to flash back to factory tune. The only problem I see is that I have heard that the sensor has to be at an angle, something about condensation causing premature sensor failure if it is not angled properly, and secondly is if the second cat doesn't get hot enough. I don't think we will have that problem, but it's nothing some header wrap wouldn't fix.. IMO. I'll probably catch crap about cheating the dealer, but I have been looking for a way to run the OFH on factory tune without popping a CEL, just in case I need to take it in for warranty work. I just thought about it, but the new empty second bung could probably be used for the Open Flash Wideband kit
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08-08-2014, 09:19 PM | #58 | |
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08-08-2014, 09:25 PM | #59 |
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Ok yeah, that part I don't get. Why move the first sensor from a pre(before the)cat location, 6'' further down stream to a new pre cat location.(no cat now that you have catless headers?) I think just moving the second o2 would work fine.
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08-08-2014, 09:26 PM | #60 |
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08-08-2014, 09:27 PM | #61 | |
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pretty sure it'll be longer than 6" to extend it to the front pipe.
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08-08-2014, 09:30 PM | #62 | |
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All good, it could definitely work now.
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08-08-2014, 09:32 PM | #63 |
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This was what you wanted to do before.
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08-08-2014, 09:34 PM | #64 | |
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And the second reference just then, so yeah, everything indicated you were going to do the same.
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08-08-2014, 09:40 PM | #65 | |
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I'll get it eventually, Yeah, I was thinking he was saying to install 1 new bung, after the second cat, then move the second o2 sensor to the new bung, and move the first o2 sensor to where the second sensor used to be. Which if I use the OFH as an example, is only about 6'' from the left bank to bung after the collector.
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08-08-2014, 09:51 PM | #66 | |
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EDIT: I see what you are saying now, yeah could work.
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08-08-2014, 09:57 PM | #67 | |
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That's correct @Target70.
Both sensors are being moved but only 1 requires the extension cable. Quote:
@s2d4 what's with your negativity man, it's a forum where this kind of discussion is supposed to take place. Relax man Last edited by B-R-Z; 08-08-2014 at 10:55 PM. |
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08-08-2014, 11:01 PM | #68 | |
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However, I stand behind the moronic statement of moving both o2 sensors to the FP.
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08-08-2014, 11:26 PM | #69 |
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Both do not go to front pipe if I follow the morons idea. He plugs the before cat hole in the header, puts the before cat sensor in the after cat bung in header, and after cat sensor goes in fp
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08-08-2014, 11:55 PM | #70 |
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If you don't want CEL use one of these or equlivant, you might have to try the different orifaces to find which stops the CEL best
http://www.phasteksport.com/2013-Sci...-o2-020001.htm Moving the position of the O2 sensors is likely to cause additional problems especially if you move the front o2 sensor You can disable the CEL code on the stock tune just open the stock tune in RomRaider set the P0420 CEL to disable save reflash stock tune. It kind of pointless though as 1. Its no longer byte for byte stock 2. The Dealer will notice your aftermarket headers WAY before they will notice the Hex code changes in a tune If you have aftermarket headers fitted your chances of engine warantee claims are reduced, same as if you have messed with position of O2 sensors. Headers change gass flows Re-position O2 sensor -reads mixtures differently. They can argue you damaged O2 sensors causing problems They can argue you introduced exhaust leaks or leaks at o2 sensors that caused problems Any melting or heat deterioration of plastic parts belts ect can be blamed on lack of heat shielding of aftermarket headers. your aftermarket headers did not have expansion joints causing stress on block ect list goes on. Aftermarket headers stand out like dogs balls Most dealers will never find a tune unless they have other evidence or reason to look. The ROM will show the same CALID or ROM ID for tuned or stock ROM in Techstream Dealer software. They would have to pull your ROM and compare it with HEX comparator or other software to be sure and that ain't going to happen unless they are after you for some reason |
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