Uppipes for '04 WRX
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Registered User
Joined: Apr 2003
Posts: 47
From: NY/NJ
Car Info: 2004 WRX
Uppipes for '04 WRX
Just a question for all who might have done this already. What is the situation with catless uppipes and CEL's on '04 WRX's? From what I have been reading the CEL fix does not work on '04s. Is this for all pipes or do certain ones not have this problem? THe pipes I am looking at is the Vishnu, Perrin and possibly Turbo XS. Any help would be appreciated.
Thanks!
Thanks!
BanHammer™
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From: Wagonmafia Propaganda Lieutenant
Car Info: 2014 Forester XT
that was with just the up-pipe
we have to do some checking, since we have never seen a CEL with one of our up-pipes ( there are 3 cars right now that we know are running them and have never had a CEL from it ) to find out why our up-pipes are not throwing the CEL like the others.
Nate did a quick check and thinks it has to do with the depth of our EGT bung and the placement. When they did the design of the first S-Squared up-pipe, Jeremy mesured the stock pipe and did the design exact to the stock for the egt placement and depth. We think it has something to do with that why the EGT is getting the correct readings where as the other up-pipes are not hence throwing the CELs
our prototype up-pipe has been on a car for 2 years and has never had a CEL from it. The other two are more current ( being a 2003 and a 2004 WRX ) and neither of them have gotten a CEL.
Ill let you know more tomorrow when we take some mesurements.
we have to do some checking, since we have never seen a CEL with one of our up-pipes ( there are 3 cars right now that we know are running them and have never had a CEL from it ) to find out why our up-pipes are not throwing the CEL like the others.
Nate did a quick check and thinks it has to do with the depth of our EGT bung and the placement. When they did the design of the first S-Squared up-pipe, Jeremy mesured the stock pipe and did the design exact to the stock for the egt placement and depth. We think it has something to do with that why the EGT is getting the correct readings where as the other up-pipes are not hence throwing the CELs
our prototype up-pipe has been on a car for 2 years and has never had a CEL from it. The other two are more current ( being a 2003 and a 2004 WRX ) and neither of them have gotten a CEL.
Ill let you know more tomorrow when we take some mesurements.
As far as I know, just because it has a bung doesn't mean it's not going to throw a CEL. Also Pony Express Performance has a CEL fix for the rear o2 sensor that has been around for awhile, but I heard it doesn't work for 04's.
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That makes no sense.
If the aftermarket uppipe has a bung, and you install the o2 sensor in it, you should not get a CEL from the uppipe. Thats the whole point of placing the bung in the aftermarket pipe. There is no air/fuel adjustmanets made from the uppipe sensor.... this is why some other aftermarket(and the STI pipe) have no bung, and use the resistor fix.
When I said
"The reason your uppipe does not througha CEL is because it has a bung"
I meant if you install the 02 sensor.... obviously leaving the sensor out and not using a resistor will cause a CEL.
If the aftermarket uppipe has a bung, and you install the o2 sensor in it, you should not get a CEL from the uppipe. Thats the whole point of placing the bung in the aftermarket pipe. There is no air/fuel adjustmanets made from the uppipe sensor.... this is why some other aftermarket(and the STI pipe) have no bung, and use the resistor fix.
When I said
"The reason your uppipe does not througha CEL is because it has a bung"
I meant if you install the 02 sensor.... obviously leaving the sensor out and not using a resistor will cause a CEL.
Registered User
Joined: Aug 2003
Posts: 30
From: Davis
Car Info: 04' JBP WRX
So far so good.. I just had my uppipe installed by s-sqaured.. I think i should reset the ECU for the adjustments.
But I do notice a faint flutter from the uppipe, could any of you tell me this is a normal sound from a catles uppipe.
But I do notice a faint flutter from the uppipe, could any of you tell me this is a normal sound from a catles uppipe.
BanHammer™
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From: Wagonmafia Propaganda Lieutenant
Car Info: 2014 Forester XT
Originally posted by TopKatz
The reason your uppipe does not througha CEL is because it has a bung. Not all do, the ones that dont nead the resistor fix. The resistor fix works for the 04 uppipe sensor.
There are still no in-line electrical fix for the rear 02 sensor.
The reason your uppipe does not througha CEL is because it has a bung. Not all do, the ones that dont nead the resistor fix. The resistor fix works for the 04 uppipe sensor.
There are still no in-line electrical fix for the rear 02 sensor.
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From: Longing for my ol' white '02 WRX :(
Car Info: 2016 Acura RDX ... meh. Um, nice subwoofer?
I have a used Perrin for sale, $150. PM me if you're interested. Only 4000 miles on it. Still in excellent condition, with Perrin studs.
jason
jason
BanHammer™
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From: Wagonmafia Propaganda Lieutenant
Car Info: 2014 Forester XT
Originally posted by nu02wrx
some uppipes will throw this code:
P0545 Exhaust gas temperature sensor circuit low input
even if you have a bung and you use the o2 sensor.
some uppipes will throw this code:
P0545 Exhaust gas temperature sensor circuit low input
even if you have a bung and you use the o2 sensor.
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From: pompous douchebag
Car Info: $200,000 sports car
I agree with scott. If an up-pipe has a bung, but the sensor isn't threaded into it deeply enough it won't get the same flow past it as it would if it were threaded deeper.
I have an S-Squared up-pipe, and I've never gotten a CEL, period.
I have an S-Squared up-pipe, and I've never gotten a CEL, period.