16 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHCEL with 200 cell cats
Leading reported evidence
Run 1 year
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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Leading evidence: 'Run 1 year' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run 1 year' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Performed · outcome unconfirmed · Original poster
I ran for about a year without any issues but now I get the CEL all the time.
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Suggestion
I like the premise of using cat elements to fool the 02 sensors better than just removing the sensor from the exhaust path and that's why I chose these over the typical spacer.
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Suggestion · Original poster
To use extensions I have to get my cats rewelded to move the O2 sensor slightly.
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Suggestion
I had to use spacers for the TopGear 200cell cats.
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Suggestion
I like the premise of using cat elements to fool the 02 sensors better than just removing the sensor from the exhaust path and that's why I chose these over the typical spacer.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
We ended being able to still use a straight spacer by use of a hammer against the floor pan so I don't know first hand if the angled ones will work or not.
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16 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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I have a problem with the CEL related to my 200 cell cats. I ran for about a year without any issues but now I get the CEL all the time. I found some extensions for the O2 sensors online that should eliminate the CEL. for example
https://www.ebay.com/itm/363436494767
. There is no room for these on my cats however since one of the O2 sensors is located tight against the other sides exhaust/cat. To use extensions I have to get my cats rewelded to move the O2 sensor slightly. Are there any alternatives specifically for the 996?
My car is a 996 C2 2002-
Robert
Google "angled" 02 spacer. I recently went through this with my son's old Pathfinder. We ended being able to still use a straight spacer by use of a hammer against the floor pan so I don't know first hand if the angled ones will work or not.
I had to use spacers for the TopGear 200cell cats. I found 45deg O2 spacers that worked well. They're harder to find than straight or 90deg, but that's what worked.
I kind of hate that solution, and wished the Cats worked as advertised, but I that's what I had to do.
There are different types. The ones you linked actually have very small filters, which have similar heavy-metal filters that act like small Cats. But they're $50 each. In my searching, I had read reviews of people that had the small caps/filters fall off in their exhaust and rattle in their muffler eternally. I did NOT read for that vendor in particular. The one's linked may be very good.
However, it turns out all I needed were the open spacers. Just pulling the post-cat O2 sensor back out of the main exhaust flow was enough to clear my check engine light. So, for me, the simple and cheap solution worked best. I got them for about $15 each and minimal shipping from Amazon. That said, I did some searching now, and between Amazon and Ebay, I can't find the simple 45 deg spacers I used. The only ones on ebay now are $27 for 2, and $25 shipping, which is crazy for what it is.
https://www.ebay.com/itm/12345782950...AAAOSwhJFb1wAm
Thanks all for the suggestions. I believe the 45 degree extensions should work on my cats too. Thank you!!
But I wonder, what happens with the cats? I ran for 1 year before I got the CEL. Does it mean that the cats got worn in that year? I mean, in that case the cats are soon worn out, or what? Or does the deterioration slow down now?
Robert
so if I put a catless x pipe and use these extenders on my car I would not get any CEL? I recently had an opportunity to get an fvd x pipe at s good price but was concerned about cel, let me know. Thanks
Like I said, I run catless system and so far they have prevented a CEL. I don't put a ton of miles on my car and the miles I do put on are not really inline with most people on the forum so I hesitate to say they'll work for everyone.
I like the premise of using cat elements to fool the 02 sensors better than just removing the sensor from the exhaust path and that's why I chose these over the typical spacer.
Was same for me. Took the passenger side O2 wires and modified the path...it was pretty uncomplicated once I looked at the problem from the top with air box removed. If you put extenders on, I believe the wires reach. I put angled extenders on mine to get the CEL to vanish. I was torqued my TopGear cats had same fab issue as you, but most folks didn�t report any issues with the bung placement. Odd.
