Exhaust backfire?
08-22-2004, 07:34 PM
#1
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Join Date: Feb 2004
Location: Oakland CA
Posts: 170
Car Info: 04 Sti blue
Exhaust backfire?
I have a 04 sti and I get this weird "Putt/poooof" sound during shifting sometimes. It kind of sounds like a light backfire. I've never noticed this before... does this happen to anyone else?
09-01-2004, 12:07 PM
#4
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Location: Houston, Texas "Drive it like you stole it.." 13.034 @ 105.19 mph
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Car Info: Aspen White 04 STI, Silver 03 RS (wife's car)
I get it frequently too I installed the Turbo XS RFL... Is back-fire really bad?? I have same 04
09-14-2004, 04:20 AM
#6
Dahveed aka Robin Hood
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Car Info: (RIP) '04 STi Silver
it seems as if this is caused by the BOV running to atmosphere, and unburned fuel is igniting.
If you have a catted DP, I'd recommend running your BOV to recirculate (if possible), since a rich A/F mixture will eventually clog-up the cats.
BTW, is this car tuned?
If you have a catted DP, I'd recommend running your BOV to recirculate (if possible), since a rich A/F mixture will eventually clog-up the cats.
BTW, is this car tuned?
09-16-2004, 01:17 AM
#7
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Car Info: 04 STi
I have a 50/50 GFB Hybrid & a stock cat back with custom stromong down pipe. No cats in my car. I don't think my car backfires, but my friends have seen me shoot small flames. Oh well, it can't be that bad, lol.
-GDO
-GDO
09-18-2004, 04:48 PM
#8
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Car Info: 06 F4I & 04 G35 CHEHOOO
hey my last name is izuka, onizuka.... lol.
anyways, i noticed that the rfl will cause backfire since it opens up at almost any boost level... my hks didnt backfire as much as the rfl i have on now.... i say put about 4 washers in the rfl and see how it is for you.
anyways, i noticed that the rfl will cause backfire since it opens up at almost any boost level... my hks didnt backfire as much as the rfl i have on now.... i say put about 4 washers in the rfl and see how it is for you.
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