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Old 06-21-2013, 11:16 PM   #26
end_of_silence
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Member#: 85565
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Location: Finksburg, MD
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2002 Goon Project
95 Neon Sport RX beater

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In my case, I had both codes but only disabled P0420. The other code cleared itself out after I removed the spacer and reset the ecu. YMMV
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Old 06-22-2013, 12:04 AM   #27
PA-Outback2000
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2000 Outback Limited
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My bad. I just read the post and missed the username. Thought u meant for me not to use one.
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Old 06-22-2013, 03:16 AM   #28
05SubieRS
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Quote:
Originally Posted by end_of_silence View Post
In my case, I had both codes but only disabled P0420. The other code cleared itself out after I removed the spacer and reset the ecu. YMMV
That seems like a good plan. What is the rest of your exhaust setup? I'm curious if this fix would work for me as well.
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Old 06-22-2013, 12:40 PM   #29
kaotiklivin4eva
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Old 06-27-2013, 04:37 PM   #30
naCAnItihS
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Location: South Coast, MA
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Tsudo UEL Header
Tsudo HFC pipe (Both $330)
OBX Catback $300

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Old 06-28-2013, 08:12 PM   #31
end_of_silence
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95 Neon Sport RX beater

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Quote:
Originally Posted by 05SubieRS View Post

That seems like a good plan. What is the rest of your exhaust setup? I'm curious if this fix would work for me as well.
Well, I had the stock headers, HFC and an Injen cat back with resonator/ muffler. I just put on some Borla rep headers and still no codes for the rear sensor, with the exception of an intermittent P0133 (front) that clears itself out after a trip. My car seems to be happy after the ecu reset so I am going to give it a couple of weeks to see if it learns how to run the new reps without throwing the P0133.
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Old 07-01-2013, 01:10 PM   #32
RecoveringSaabaholic
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Quote:
Originally Posted by 05SubieRS View Post
Correct! And I know that because in '05 for the RS, the ECU uses the rear sensor for more than just checking for a healthy cat, and using a spacer would mess up the fueling.

So... Given that... What is someone with an '05 to do?

I know that you are primarily looking at UEL, but for what its worth, my exhaust setup has never given me the p0420 code. Only once have i gotten the p2096 code, and that was after a 8 hour straight highway blast. Reset the ECU, and haven't seen it since. Have had the exhaust on the car almost a year now in weather ranging from 90+ days to subzero winters, and in all sorts of different driving conditions. I have CNT EL headers w/HFC and OBX 2.5" catback. Had to buy O2 extension for the rear sensor, and everything bolted right up. No fitment issues. The sound is not quite as nice as the UEL guys, but far from a honda rasp.
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Old 07-01-2013, 02:21 PM   #33
silverton
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If the '01 legacy manifold is anything like the 01 impreza manifold, it's pretty damn close to being equal length. But it's a horrible design. The passenger side runners meet the driver side after a 90* bend, and then immediately have to make a 180* bend. That's why there is a slight "rumble" in the exhaust note when adding a higher flowing muffler.

Here is stock manifold and cat pipe with a 2.5" muffler shop special

and here is the same 2.5" cat back with a Borla replica and stock cat pipe
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