i was wondering if there is a way to run a header on a 5sfe with the cat under the header. is there a way to bypass the o2 sensors without driving around with the check engine light on?
header problems - 6G Celicas Forums
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Im not to sure how well it works but weapon- r makes a cel eliminator for the o2 sennsors check it out and see what you think the site is called weapon-r.com
QUOTE (TannerEsser @ Feb 24, 2012 - 10:48 AM) 
>i was wondering if there is a way to run a header on a 5sfe with the cat under the header. is there a way to bypass the o2 sensors without driving around with the check engine light on?
Im not to sure how well it works but weapon- r makes a cel eliminator for the o2 sennsors check it out and see what you think the site is called weapon-r.com
you get a check engine light? what header are you using?
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well it will be on because no matter what header i get only one of the two o2 sensors will be atatched
QUOTE (mkernz22 @ Feb 24, 2012 - 11:36 AM)
>you get a check engine light? what header are you using?
well it will be on because no matter what header i get only one of the two o2 sensors will be atatched
i only got one o2 sensor attached on mine with no CEL.
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QUOTE (TannerEsser @ Feb 24, 2012 - 8:40 AM)
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well it will be on because no matter what header i get only one of the two o2 sensors will be atatched
QUOTE (mkernz22 @ Feb 24, 2012 - 11:36 AM)
>you get a check engine light? what header are you using?
well it will be on because no matter what header i get only one of the two o2 sensors will be atatched
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did yours only come with one?
QUOTE (JasonX @ Feb 24, 2012 - 12:49 PM)
>i only got one o2 sensor attached on mine with no CEL.
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QUOTE (TannerEsser @ Feb 24, 2012 - 8:40 AM)
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well it will be on because no matter what header i get only one of the two o2 sensors will be atatched
QUOTE (mkernz22 @ Feb 24, 2012 - 11:36 AM)
>you get a check engine light? what header are you using?
well it will be on because no matter what header i get only one of the two o2 sensors will be atatched
did yours only come with one?
no, if you buy any of the headers off eBay, they come with a mounting spot for both of the o2 sensors. I'm running the header from eBay, but since I have a '95, i only have 1 o2 sensor, but I'm still using the second one to see my A/F ratio.
This post has been edited by mkernz22: Feb 24, 2012 - 11:51 AM
This post has been edited by mkernz22: Feb 24, 2012 - 11:51 AM
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ya but i have two for the emission control system. and if there is no cat converter in between those two sensors the check engine light will be on..
This post has been edited by TannerEsser: Feb 24, 2012 - 11:55 AM
QUOTE (mkernz22 @ Feb 24, 2012 - 12:51 PM)
>no, if you buy any of the headers off eBay, they come with a mounting spot for both of the o2 sensors. I'm running the header from eBay, but since I have a '95, i only have 1 o2 sensor, but I'm still using the second one to see my A/F ratio.
ya but i have two for the emission control system. and if there is no cat converter in between those two sensors the check engine light will be on..
This post has been edited by TannerEsser: Feb 24, 2012 - 11:55 AM
i don't believe it will be on. i haven't heard of any problems on here before about.
I have a ebay header with both o2 sensors in it an both are hooked up just like stock
I have no cell no light or anything
I dont have a cat earher
Idk if it will pass emissions or no since they dont check where i live
My light has kicked on once since the header an that was because my o2 came unplugged
I have no cell no light or anything
I dont have a cat earher
Idk if it will pass emissions or no since they dont check where i live
My light has kicked on once since the header an that was because my o2 came unplugged
95 gt coupe, v6 swap weekend toy99 gt hatch beams swapped wife's94 st hatch my daily driverhttp://www.6gc.net/forums/index.php?showtopic=82235n
OBD1 doesn't care, OBD2 'generally' does.
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this is the key..
QUOTE (Arsaces @ Feb 24, 2012 - 2:31 PM)
>OBD1 doesn't care, OBD2 'generally' does.
this is the key..
"The buy my stuff, for help make great finish project of celica fund!"
thanks guys. i do have a camry manifold. any ideas where i should put my second o2 sensor?
well if you can get some pics, it would be easier for us to help you
just one second
my engine
my o2 sensors
Camry manifold
my o2 sensors
Camry manifold
Have a bung welded in above the 4 wire and put your 1 wire sniffer in. What year is your Celica? Looks the same as my 94 OBDI California emissions.
Just realized you have a two wire upstream, so you're OBDII.
If you want to run a cat, have a universal Magnaflow one welded in down below and extend the wires to it.
This post has been edited by RabidTRD: Feb 24, 2012 - 9:38 PM
Just realized you have a two wire upstream, so you're OBDII.
If you want to run a cat, have a universal Magnaflow one welded in down below and extend the wires to it.
This post has been edited by RabidTRD: Feb 24, 2012 - 9:38 PM
1994 Toyota Celica GT-S 5S-FE 190k Miles. Project car1992 Toyota Celica GT 5S-FE 170k Miles. Daily driver/beater1999 Toyota Camry LE 5S-FE 216K Miles. RIP You will be missed.*ASECertifiedGeneralManager
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yes he is OBDII, but there were two sensors on my '95 cali spec.
as for that camry manifold, it maybe farther up on it, but i don't understand why you're replacing a stock exhaust with a stock exhaust...
just the a header off ebay! depending where you get it from, it shouldn't be too much
QUOTE (RabidTRD @ Feb 24, 2012 - 9:09 PM)
>Have a bung welded in above the 4 wire and put your 1 wire sniffer in. What year is your Celica? Looks the same as my 94 OBDI California emissions.
Just realized you have a two wire upstream, so you're OBDII.
If you want to run a cat, have a universal Magnaflow one welded in down below and extend the wires to it.
Just realized you have a two wire upstream, so you're OBDII.
If you want to run a cat, have a universal Magnaflow one welded in down below and extend the wires to it.
yes he is OBDII, but there were two sensors on my '95 cali spec.
as for that camry manifold, it maybe farther up on it, but i don't understand why you're replacing a stock exhaust with a stock exhaust...
just the a header off ebay! depending where you get it from, it shouldn't be too much
CA cars have 2 O2 sensors, all years
2001 Celica GT-S Turbo1997 Supra TT 6speed1997 Celica 3MZ/1MZ swap1990 Celica All-Trac
so just to clarify with my set up if i got ebay headers my check engine light would not be on?
With OBDII it will probably pop under heavy acceleration. You can have a bung welded in past your 2nd cat and extend the wires to fix that.
-Nate
This post has been edited by Arsaces: Feb 27, 2012 - 12:06 PM
-Nate
This post has been edited by Arsaces: Feb 27, 2012 - 12:06 PM
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Camry manifolds, for whatever reason, were a tubular manifold versus the Celica's log style. Log style tends to be better for low RPM efficiency, which leads to better take-off, while the longer runners on the Camry's 4-1 tubular design are often better for efficiency at higher RPMs.
QUOTE (mkernz22 @ Feb 25, 2012 - 9:14 PM)
>as for that camry manifold, it maybe farther up on it, but i don't understand why you're replacing a stock exhaust with a stock exhaust...
just the a header off ebay! depending where you get it from, it shouldn't be too much
just the a header off ebay! depending where you get it from, it shouldn't be too much
Camry manifolds, for whatever reason, were a tubular manifold versus the Celica's log style. Log style tends to be better for low RPM efficiency, which leads to better take-off, while the longer runners on the Camry's 4-1 tubular design are often better for efficiency at higher RPMs.