Mother of all defouler threads...

[ezcivic type r]

Originally Posted by jokka

since it's just a computer error dont worry too much.

after 30 more miles, the CEL came back.

[deuce0880]

quick question, i have a BCRH with the defouler but i have a AEM UEGO, should i weld another bung for the AEM?

[NitrousG35]

Originally Posted by hoonu

Is there anywhere to get an angled defouler in SoCal?

I think you will have to get the ebay version mentioned on the first page of the thread.

[mattsbobo]

Originally Posted by hoonu

Is there anywhere to get an angled defouler in SoCal?

Originally Posted by NitrousG35

I think you will have to get the ebay version mentioned on the first page of the thread.

Or you could get the Weapon R :Weapon*R Racing Development

I was getting a CEL every 19 miles, and I've been 769 miles without a CEL since the Weapon R install. Best $50 I ever spent.

[jokka]

Originally Posted by ezcivic type r

after 30 more miles, the CEL came back.

that's wierd. maybe the defouler needs to be extended more ?

unlike you my only bolt on mods are intake/headers and it's been over 3k miles with no CEL. I'm kind of suprised that i havent gotten a CEL yet.

[ezcivic type r]

Originally Posted by jokka

that's wierd. maybe the defouler needs to be extended more ?

unlike you my only bolt on mods are intake/headers and it's been over 3k miles with no CEL. I'm kind of suprised that i havent gotten a CEL yet.

I just done taking off the blox straight defouler and switched it w/ the ebay angled defouler. I'm gonna go for a drive soon to see it it will come on. it usually comes on w/ in 20-35 miles so we'll see. if i get it again, i'm gonna try a combination of the straight and angled one.

[ezcivic type r]

Update, Ok so I installed the ebay angled defouler earlier this week, and after 100 miles, the CEL came back. it is an improvement however, i used to get it after 20-30 miles. Now my next solution is to combine the angled defouler and the straight defouler to see if that works. I'm thinking that its still reading too much of the gasses so extending it out even more might help. anyone have any input? I know a couple of people w/ the supercharger are having the same problem w/ their header.

[tehcodeman]

I also tried doubling up on defoulers like you're about to do but that also didn't help. but i'm not SC'd though. have you tried running without a defouler at all?

[ezcivic type r]

Originally Posted by tehcodeman

I also tried doubling up on defoulers like you're about to do but that also didn't help. but i'm not SC'd though. have you tried running without a defouler at all?

no i havent. that may be my next solution if this doesnt work.

[NitrousG35]

Originally Posted by ezcivic type r

Update, Ok so I installed the ebay angled defouler earlier this week, and after 100 miles, the CEL came back. it is an improvement however, i used to get it after 20-30 miles. Now my next solution is to combine the angled defouler and the straight defouler to see if that works. I'm thinking that its still reading too much of the gasses so extending it out even more might help. anyone have any input? I know a couple of people w/ the supercharger are having the same problem w/ their header.

Originally Posted by tehcodeman

I also tried doubling up on defoulers like you're about to do but that also didn't help. but i'm not SC'd though. have you tried running without a defouler at all?

Guys, this really has me scratching my head. I think it is the first time I have read where people still got CEL's after installing an angled defouler.

It may be possible that the ECU is reading too many gasses. I wonder if a small sized washer could be put inside the defouler where it screws into the header? A washer with an outside diameter smaller than the inside diameter of the defouler, along with a smaller hole, could possibly trick the ECU into thinking the exhaust gas flow is fine. The washers would have to be very thin, something that is used on diecast model cars or the like. Just a thought.

[datbacker59]

is this sold at pep boys or advance auto parts?

[tehcodeman]

Originally Posted by NitrousG35

Guys, this really has me scratching my head. I think it is the first time I have read where people still got CEL's after installing an angled defouler.

It may be possible that the ECU is reading too many gasses. I wonder if a small sized washer could be put inside the defouler where it screws into the header? A washer with an outside diameter smaller than the inside diameter of the defouler, along with a smaller hole, could possibly trick the ECU into thinking the exhaust gas flow is fine. The washers would have to be very thin, something that is used on diecast model cars or the like. Just a thought.

I'm running fine now with just the ebay defouler and have been for about 500 miles. I doubled up before because the WeaponR was ridiculously hard to get off once the header was mounted, so I just threw the ebay defouler on the end of it. but that didn't work, so I toughed it up and crawled under the car. I had undo all three bolts on the exhaust flange, loosen and take off the WeaponR, and the put on the ebay defouler.....and this was with the car about 8 inches off the ground with one floor jack and no jack stands. Yeah....I'm really skinny (and sorta stupid to take the big risk of not supporting the car properly).

[NitrousG35]

Originally Posted by tehcodeman

I'm running fine now with just the ebay defouler and have been for about 500 miles. I doubled up before because the WeaponR was ridiculously hard to get off once the header was mounted, so I just threw the ebay defouler on the end of it. but that didn't work, so I toughed it up and crawled under the car. I had undo all three bolts on the exhaust flange, loosen and take off the WeaponR, and the put on the ebay defouler.....and this was with the car about 8 inches off the ground with one floor jack and no jack stands. Yeah....I'm really skinny (and sorta stupid to take the big risk of not supporting the car properly).

Glad to hear your car is running fine now. I imagine that Weapon R was a real biatch to get off. Let's hope that dreaded CEL is exorcised from your car once and for all.

[rws381]

Subscribed...trying to learn all I can before I pull the trigger and get a Vibrant w/ HFC.

[nycclaye]

so question. has anyone tried this with a custom test-pipe? I have a comptech header, but know I will need a defouler when I remove the cat and have a test-pipe built.

[boca1]

yea its pretty good^

[jokka]

so after about 5k miles.. i still have no CEL.

really wierd. inspection is due by june so hopefully it'll stay off but i might put the defouler on just in case

[BRSi]

I can't wait to install all my stuff ... I think the ebay defouler I bought will do the trick.

[nycclaye]

does anyone know where I can buy an angled defouler? I've looked online.... Will anyone of them fit?

[BTRobertson]

Originally Posted by nycclaye

does anyone know where I can buy an angled defouler? I've looked online.... Will anyone of them fit?

At the beginning of this thread, Nitrous posted a bunch of links directly to the defoulers for our cars. Head back there and check 'em out.