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post #16 of 27 Old 10-23-2013, 11:23 AM
TroubleNEO
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I know a guy with hollow cats, has a Jeep that looks exactly like mine and it runs great.


Looking for: 03-06 interior plastic trim. PM me.
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post #17 of 27 Old 10-23-2013, 03:07 PM
GSP
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These will work and eliminate check engine light:

Dorman/Spark Plug Non-Fouler $9

http://www.autozone.com/autozone/par...720771_0_2826_



All my vehicles but one has dead cats.... this works...

Last edited by GSP; 10-23-2013 at 03:18 PM.
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post #18 of 27 Old 01-24-2014, 08:42 AM
durnjeep
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Why would you disregard what the manual says? If it says it affects fuel/air ratio than it does. And it DOES. I was having an idle issue and had codes p0141 and p0161 and replaced both downstream sensors, and voila, no more idle issue. These hillbilly mechanics that "went to school" need to go back to school.
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post #19 of 27 Old 01-24-2014, 02:03 PM
catsknr
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Quote:
Originally Posted by GSP View Post
These will work and eliminate check engine light:

Dorman/Spark Plug Non-Fouler $9

http://www.autozone.com/autozone/par...720771_0_2826_



All my vehicles but one has dead cats.... this works...
These work great. I have them on my Jeep and my S-10, only my sensor was too long so I had to use two and drill out the bottom of the top fouler. Worked like a champ.

/l ,[____],
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post #20 of 27 Old 04-12-2014, 08:36 PM
HAFICON
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Old thread I know.. *L* found this to be some what entertaining, I am just reading up about to replace full exhaust on my TJ

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post #21 of 27 Old 09-09-2014, 11:58 AM
JohnyRRR
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How do these work, I would think by moving the O2 sensors into colder air and out of the exhaust stream they would think its cold out and increase richness by adding more gas? just curious



Quote:
Originally Posted by GSP View Post
These will work and eliminate check engine light:

Dorman/Spark Plug Non-Fouler $9

http://www.autozone.com/autozone/par...720771_0_2826_



All my vehicles but one has dead cats.... this works...

2010 4door sport 6-speed
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post #22 of 27 Old 09-10-2014, 11:08 AM
joe_jeep
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on a 97 u dont need an o2 simulator, or to remove the cat.
it will empty itself soon enough.


or buy a magnaflow hi flow cat, and put it back together.

glfwda #6624
2005 rubicon sahara lj #592
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post #23 of 27 Old 09-10-2014, 01:15 PM
willis36
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Quote:
Originally Posted by joe_jeep View Post
on a 97 u dont need an o2 simulator, or to remove the cat.
it will empty itself soon enough.


or buy a magnaflow hi flow cat, and put it back together.
I have not had a magnaflow cat last more than two years before blowing chunks out the tailpipe.
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post #24 of 27 Old 09-10-2014, 01:29 PM
chmo
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Quote:
Originally Posted by JohnyRRR View Post
How do these work, I would think by moving the O2 sensors into colder air and out of the exhaust stream they would think its cold out and increase richness by adding more gas? just curious
I do not think the "air" reaching them is much "colder" if you use those spark plug non foulers on post cat O2s ... just less measured partikel stream per time unit. (as if the cat is still there)

And the air fuel mix gets mainly adjusted with help of the PRE cat O2s ... which you should not touch!

LOL

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post #25 of 27 Old 09-10-2014, 02:03 PM
JohnyRRR
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ok thanks

2010 4door sport 6-speed
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post #26 of 27 Old 09-10-2014, 02:45 PM
joe_jeep
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Quote:
Originally Posted by willis36 View Post
I have not had a magnaflow cat last more than two years before blowing chunks out the tailpipe.
on my first jeep, the factory cat emptied itself into my muffler.
i put a new muffler on it. the empty cat was fine. never threw a code.
kinda sounded decent. had a welded thrush with the empty cat.

i have never heard of magnaflows failing?
seems to be the go to brand of hi flow cat.
the price is decent also. is there a better one out there?

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2005 rubicon sahara lj #592
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post #27 of 27 Old 09-10-2014, 03:06 PM
willis36
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Quote:
Originally Posted by joe_jeep View Post
on my first jeep, the factory cat emptied itself into my muffler.
i put a new muffler on it. the empty cat was fine. never threw a code.
kinda sounded decent. had a welded thrush with the empty cat.

i have never heard of magnaflows failing?
seems to be the go to brand of hi flow cat.
the price is decent also. is there a better one out there?
YOur right seems to be the go to cat. Don't know what was up with the two
that I have had. There are other brands out there, but they cost quite a bit more money. Don't know if it makes a difference, but I did not get the tj bolt on cat, but the universal weld on unit.
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