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Old 03-24-2007, 09:39 PM   #1
clsmooth
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Member#: 86394
Join Date: May 2005
Chapter/Region: VIC
Location: West Vancouver
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2000 RS Coupe
Blue Ridge Pearl

Default CEL trend

4th GC now with P0420. Looks like the stock Subaru gas cap isn't sealing as good as it used to anymore.
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Old 03-26-2007, 03:19 PM   #2
Spy
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2009 Norco Team DH

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yea.. i just got a CEL today too.. iv had cel's before, an altho iv never got any of them checked, they always go away after a check the gas cap..altho this one is staying a bit longer..
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Old 03-26-2007, 10:36 PM   #3
Spy
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so what are you gc peeps doing then? just clearing the code, or are you guys getting new gas caps? or is it just fixing itself
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Old 03-26-2007, 11:00 PM   #4
cwareing
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I will probably take Chris' advice and invest in a new gas cap.
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Old 03-26-2007, 11:03 PM   #5
GlobalWaste
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I've heard of some people that decided to just crazy glue the gas cap shut so there wouldn't be any more leaks, works great.
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Old 03-26-2007, 11:03 PM   #6
Yannerd
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I had the same code a few months ago, turns out it was an issue with my evap system leaking.
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Old 03-26-2007, 11:07 PM   #7
Spy
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2009 Norco Team DH

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^^good good i like your ideas here guys...

maybe we can do a group buy on gas caps! hahaha

but seriously tho.. i think i need a new one as well.. altho i should get the code checked before
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Old 03-27-2007, 01:34 AM   #8
Matt_Chan
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Hey Chris, thanks for pulling the code for me.

I bought a new gas cap and everything's working well now... no CEL *fingers crossed*
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Old 03-27-2007, 01:35 AM   #9
Spy
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did u get a pimp gas cap? or just another stocker

where and how much?
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Old 03-27-2007, 01:58 AM   #10
Matt_Chan
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I got cheap... went to Lordco 8 bux tax included (but I have a employee discount card). Think it's about 11 without the card.
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Old 03-27-2007, 02:15 AM   #11
clsmooth
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Good to hear! I had the same code and the vented gas cap from Wal-Mart did the trick for me. Try a gas cap first and if it works it's an $8 fix; if not, OK, next step. If it still back it's not the gas cap and probably something you should check out at a shop at that point. They can hook it up to a machine that can easily find the leak.

I'll take a pic of the gas cap that worked for me and what to look for.

Last edited by clsmooth; 03-27-2007 at 07:07 AM.
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Old 03-27-2007, 05:56 PM   #12
Spy
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alrighty, picked up the lordco cheapo gas cap...
altho my cel didnt turn on today.. finally.. i figured i just get rid of it permanently.. so i got the new cap...

first impressions... looks sharp, sounds good, smells good, tastes good, and it even feeels good haha
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Old 03-30-2007, 02:53 PM   #13
smokey25
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Silverthorne Metallic

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Just a little update i guess, My CEL came on about 2 days after clsmooth pulled the code, was on for about 3 weeks and now it turned off again yesterday. Went out and bought a red gas cap with a little black button in the middle from Canadian Tire for 9 bucks. Hopefully it stays off
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Old 03-30-2007, 04:22 PM   #14
GlobalWaste
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Quote:
Originally Posted by smokey25 View Post
Went out and bought a red gas cap with a little black button in the middle from Canadian Tire for 9 bucks. Hopefully it stays off
Bling!!
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Old 03-31-2007, 05:06 AM   #15
clsmooth
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That's the cap to get!
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Old 03-31-2007, 01:35 PM   #16
GlobalWaste
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no no no... THIS is the cap to get:

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Old 03-31-2007, 01:42 PM   #17
lummer shawn
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BRP

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Quote:
Originally Posted by amarpauld View Post
no no no... THIS is the cap to get:

im shocked
i expected that was the one everyone was gonna get
what you guys should do, is try and get all the wrx gas caps for free that all the kids dont use when they buy that bling bling sti cap
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Old 03-31-2007, 01:52 PM   #18
KIMUTAKU
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Ninja Lime Green

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^^^ i have got that STi cap if anyone is interested.. haha..

btw it's NOT a direct replacement.. it goes on to the stock cap.. and requires some trimming.. you can also use it as your oil cap too!

pm me if anyone is interested.. it's new in box..
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Old 04-01-2007, 04:52 AM   #19
5 Zigen
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Quote:
Originally Posted by clsmooth View Post
4th GC now with P0420. Looks like the stock Subaru gas cap isn't sealing as good as it used to anymore.
P0420 Catalyst system efficiency below threshold

now i wonder if a gas cap will really fix that...

spy: if ur check engine light comes on and goes away, try to have the code pulled; mine was Knock sensor and i have seen that many times before too
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Old 04-01-2007, 06:59 AM   #20
Mirage
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The light usually goes away after I talk to her.. lol
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Old 04-01-2007, 07:15 AM   #21
semaj
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Quote:
Originally Posted by Mirage View Post
The light usually goes away after I talk to her.. lol
But the nagging doesn't stop?
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Old 04-01-2007, 02:08 PM   #22
clsmooth
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Blue Ridge Pearl

Default

Quote:
Originally Posted by 5 Zigen View Post
now i wonder if a gas cap will really fix that...
No guarantee, but worth a shot cause it's possibly a quick, cheap and easy fix.

Quote:
Originally Posted by semaj View Post
But the nagging doesn't stop?
BAHAHAHAHAHA
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Old 04-01-2007, 02:13 PM   #23
Spy
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2009 Norco Team DH

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Quote:
Originally Posted by 5 Zigen View Post
spy: if ur check engine light comes on and goes away, try to have the code pulled; mine was Knock sensor and i have seen that many times before too
ok cool.. it ususal doesnt stay long so i dont really have time.. and i dont even know where id have it pulled.. but apparently i can do it myself with those green plugs.. so.. if it does come up again.. ill do that... ever since i got the new gas cap, it hasnt come on
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Old 04-01-2007, 02:43 PM   #24
patr
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are you guys serious ? what on earth makes you think code 420 is the gas cap ?? thats the cat code...

EDIT: looks like someone else posted the same. Anyways, you might be confusing 442 with 420. In any case, 420 is NOT the gas cap and NEVER WILL BE so if the gas cap fixes it, you dont have 420.

-Pat
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Old 04-02-2007, 02:54 AM   #25
clsmooth
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Blue Ridge Pearl

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Anyways, this is the cap that worked for me, it never came back afterwards in my case. Look for one with the button in the middle.

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