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Author Topic: Finally Failed  (Read 44 times)
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95 Lowbuck
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« on: December 06, 2017, 06:09:36 PM »

The wonderful state of California failed my Jeep on emissions today.
The Nox is my particular problem, both at 15 and 25 mph.
Engine is bone stock and never  been even close to failing before.
Motor is in pretty good shape at 180k miles, but still has original CAT.
Any suggestions?
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1995 YJ RioGrand, 2.5, AX5, 231 T.C., A.A. SYE,
D30, XJ D44, Truetracs F+R, CV D.S. F+R, 4.88's
R.E. 4" STD., 33-10.50 BFG KM2's on stock rims.
Jeffy
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« Reply #1 on: December 07, 2017, 10:19:49 PM »

Replace the cat.  Cats are probably good for 100K or about 10 years.  If your exhaust is stock, I'd go with a bolt-on Magnaflow.  You might have a little trouble getting it off the muffler but it's worth it, I think.  It's a PITA to deal with a welded exhaust and mods later down the line.  The only problem is that the CA-Legal cat costs $100 more than the 48-State.  Funny since I passed emissions with one from before they made a CA specific cat.
« Last Edit: December 08, 2017, 04:14:41 PM by Jeffy » Logged

Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."
95 Lowbuck
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« Reply #2 on: December 08, 2017, 03:34:13 PM »

 Yup, that's what I'm thinking.
$208.00 for the Cat, $150 to install.
Previous owner had the whole system welded.
Will put some miles on it before retest.
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1995 YJ RioGrand, 2.5, AX5, 231 T.C., A.A. SYE,
D30, XJ D44, Truetracs F+R, CV D.S. F+R, 4.88's
R.E. 4" STD., 33-10.50 BFG KM2's on stock rims.
Jeffy
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Posts: 14813



« Reply #3 on: December 08, 2017, 04:22:11 PM »

They will probably cut the flange off the downpipe and weld it directly to the cat.

If the flange is still there, you might consider getting a bolt-on cat-back like the DynoMax for $185 and installing it yourself.
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Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."
95 Lowbuck
Member

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Posts: 123


« Reply #4 on: December 08, 2017, 07:05:15 PM »

Yea, at some point the previous owner welded up all the slip joints, no flanges.
When they put on the new Cat today it had to be welded up.
Nice picture of your flop btw.
Looks like somewhere on the Rubicon.
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1995 YJ RioGrand, 2.5, AX5, 231 T.C., A.A. SYE,
D30, XJ D44, Truetracs F+R, CV D.S. F+R, 4.88's
R.E. 4" STD., 33-10.50 BFG KM2's on stock rims.
Jeffy
Administrator
Member

Offline Offline

Posts: 14813



« Reply #5 on: December 08, 2017, 07:43:12 PM »

Yea, at some point the previous owner welded up all the slip joints, no flanges.
When they put on the new Cat today it had to be welded up.
Nice picture of your flop btw.
Looks like somewhere on the Rubicon.
The V Groove, just after Lil Sluice.  Wasn't paying attention and went up the wall too far and the rear tire fell into a hol.  Then it flopped on it's side.  It was a very slow flop.

http://4bangerjp.com/forums/index.php/topic,11646.0.html
« Last Edit: December 08, 2017, 07:44:31 PM by Jeffy » Logged

Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."
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