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'05 2.5RS Wagon
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69 Posts
Discussion Starter · #1 ·
I have tried spacers, I can only go about 200 miles before I throw a p0420. I have borla reps (wrapping cam off) supers HFC, Tsudo cat-back (2005 RS). Inspection is in 2 weeks.

I did some searching for MIL eliminators and keep coming up empty, any DIY options or is an AP going to be about it?
 

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99 Rs MBP
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73 Posts
Correct me if im wrong but there is a thread some where on here that contains a circuit that you add onto your o2 sensor. (its a simple cap and resistor filter) that stops the code. It worked on my 99.
 

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05 STi WannaBE
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6,055 Posts
^ Thats your problem right there. Our ECUs are seriously picky. Hell I even got CELs when I just had a catback. Ive tried the spacers as well and they just didnt work for me. AP is your best weapon against this problem.

...if you can find one ;)
 

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2007 WRX Wagon UGM
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2,391 Posts
Are you talking about an o2 sensor spacer? If that's what you're talking about, you shouldn't use those on 05+ 2.5rs'.
Williaty has a thread on nasioc about this.

Edit:sorry I don't know how to read before posting.

Never heard of an MIL eliminator before..:confused:
 

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09 Forester
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656 Posts
Correct me if im wrong but there is a thread some where on here that contains a circuit that you add onto your o2 sensor. (its a simple cap and resistor filter) that stops the code. It worked on my 99.
except the 05s use the rear O2 sensor to help with a/f...so you can't really mess with it. however I'm MY02 so if you can find that thread I'd e-hug you :)
 
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