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Old 04-29-2013, 11:51 AM   #1
jayps615
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Default Need advice

I read and searched through a couple of similar situations and wasn't able to find a clear answer.


But i Just installed a new exhaust downpipe all the way back. It is catted, with an o2 sensor installed but it's throwing a cel. I figured it might just need to be tuned but not sure if that'll make the cel go off. I'm sure my o2 sensor is not out so can someone please let me know how to get rid of the cel.
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Old 04-29-2013, 12:00 PM   #2
1wrxtra
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Which trouble code is being thrown?

I'm assuming since you mentioned that it "might" need to be tuned, you haven't tuned for the DP.

I may be wrong, and if so others here will correct me, but only the 02-04 WRX does not need a tune for a downpipe. Your 06 WRX requires a tune for a downpipe.

I would get that tuned for asap, and take it very very easy on the throttle. No boosting for you.

Other than that, and not knowing which trouble code is being thrown, we can only infer what the issue could be.
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Old 04-29-2013, 12:05 PM   #3
jayps615
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its for the o2 sensor. thanks for the input. hoping i would still be able to ride on it for the moment without the tune. will keep off boost though
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Old 04-29-2013, 01:39 PM   #4
jayps615
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Bumpppppp
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Old 04-29-2013, 01:43 PM   #5
tec_41
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Quote:
Originally Posted by 1wrxtra View Post
I may be wrong, and if so others here will correct me, but only the 02-04 WRX does not need a tune for a downpipe. Your 06 WRX requires a tune for a downpipe.
02-03 don't need tunes is what I've been told.

OP- Highly recommended that you get a tune asap, but if you need to drive definitely stay out of boost.
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Old 04-29-2013, 02:00 PM   #6
greenplates
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02-03 don't inherently NEED a tune. You don need to "drive safe". 02-03 run pig rich from factory

But, yes, you should get a tune to eliminate the check engine light
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Old 04-29-2013, 02:37 PM   #7
1wrxtra
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Quote:
Originally Posted by greenplates View Post
02-03 don't inherently NEED a tune. You don need to "drive safe". 02-03 run pig rich from factory

But, yes, you should get a tune to eliminate the check engine light
OP has an '06.
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Old 04-29-2013, 04:52 PM   #8
HinshawWRX
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Quote:
Originally Posted by jayps615 View Post
Bumpppppp
There is no need to bump the thread.

Putting a downpipe and not tuning on ANY WRX/STI/LEGACY is bad. (Except 02-03's which you do not have) This is why you should research and THEN buy. Even if you "drive safe" and "stay out of boost" you are risking your entire motor.

Get a tune asap. And if you have a trouble code next time, post the actual code so we can help.
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Old 04-29-2013, 07:01 PM   #9
jayps615
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Thanks for the input all. I might be driving on it for a week would that damage anything?
and I also have a catted downpipe not sure if that makes a difference.
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Old 04-29-2013, 07:13 PM   #10
Thunderpaw
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A week of crossing your fingers


For future if you plan on changing something that requires a tune, you should try to do it in quick succession
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Old 04-29-2013, 07:13 PM   #11
kpluiten
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The stupid EJ255/257 motor is a damn grenade with a downpipe and no tune. I don't buy this "I promise to stay out of boost" thing everyone claims ever since I rode with some local guy who told me he was staying out of boost and he was 75% throttle every time he left a light. He clearly didn't understand/know what boost was.
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Old 04-29-2013, 07:37 PM   #12
jayps615
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Damn I don't want this one mistake to be my last. definitely going to try to not drive the car at all. I ran it hard once or twice hopefully it didnt damage anything.
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Old 04-29-2013, 08:11 PM   #13
1wrxtra
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Can you put the stock one back on?

I wish there was a facepalm smiley.
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Old 04-30-2013, 01:04 AM   #14
jayps615
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It's alright i still have a two year warrenty on it, so if worse comes to worse ill just throw on my stock intake and get a new motor and hopefully turbo as well.
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