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hey guys my friend has a 05 civic vp manual and once he got his obx header installed his check engine light stays on and he said he smells gas.. i havent found any threads about it yet so im postin here if this is the right place. is it because of a air flow sensor ?

 
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I have a EX but I am shure the VP has the Cat on the header so when he got a new header he got rid of his cat so that's why the check engine light is on. He should get a O2 senser elimanator. There is a DIY on this site just search and it should come up.

 
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hope he lives where they dont require a smog check.

 
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thats why i love living here in florida

 
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agreed!!

 
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that's the one of the good things about living in the southeast, no smog checks.

yeah the cat was eliminated so you have to get a o2 sim. it's not hard or expensive and there is a thread on this site somewhere that explains how to do it.

 
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smelling gas is natural too, now that he doesnt have a cat

 
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yea thats' a lil bit normal. i don'tk now about the whole gas thing but u will smell oders comming out of the bottome of your car from time to time. just make sure all the seals are on ther tight, the seal from the header to the down pipe is what i'm talking about.

 
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well the cat is what takes out the odor and pollution and now he doesnt have one so its just pumpin it out the exhaust. and he took away the o2 sensor so its runnin rich as ****. just get a high flow cat and put an o2 sensor bung in the pipe and it should solve his problems.

 
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unfortunately, he has to do EX exhaust conversion to run a high-flow cat, because the LX/DX header+cat are 1 piece.

 
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right. hes going to have to redo the whole exhaust from the header back to make it legal and solve his problems.

 
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your check engine light comes on because you dont have a cat no more. hope you dont get in trouble for it.

 
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well i had this setup before, if you wanna get rid of this cel.. simply buy a so called "cel eliminator" just sold mine too ragingspam (my obx) and included the cel eliminator, its a small thing the bolt right on between the o2 sensor hole of the obx and the o2 sensor, you wanna install it to the 2nd or the last o2 sensor (very end/bottom or whatever).

so basically you dont need to convert, but if you wanna be legal then convert to ex.

and se7engen's right, so if a popo opens your hood.. say goodbye to your 200 bucks.

and about the smell, i think you forgot to put the gasket or you decide not to put it cause its too small.. well yep it is to small.. you have to look for the right size, i think its 2" gasket. GL!

btw, you can buy this CEL eliminator on ebay for 20bucks or something. i actually have one, so let me know if you need it.

J

 
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i have a 04 civic ex..i was wondering if i put a OBX header in my car would i be able to pass inspection with no problem?just a thoought..
sorry to ask in this thread..i didnt felt like it is needed to open a new thread to as the same question or so..

 

bwahaha^. ya u will pass, but dont get OBX if u have EX, cuz u might as well get a dc sport or megan or hp or something better. ur car has the header as 1 piece which is then connected to the downpipe and then exhaust. sadly for the lx model , the catalytic converter (in EX downpipe) is located in the LX header. so w/the obx header on the LX model, it replaces the cat and goes straight to the exhaust.


i wish i knew about this before i got a lx

 
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soo this mean i can get another headdder and put it in and pass inspection with no problem?woot woot
thanks

 

yeah, no prob.

i would personally get a dc sport header. thats what im going to get...only difference is i have to get a high flow cat to make it work on my model and all u need to get is just the header and ur done

 
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