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failed NOx jeep 2.5 (25th Aug 08 at 7:01pm UTC)
failed NOx 1997 jeep wrangler 2.5L any ideas? Bad egr?

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Re: failed NOx jeep 2.5 (25th Aug 08 at 7:07pm UTC)
egr
egr solenoid
coolant temp sender (that's an often overlooked one)


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Re: failed NOx jeep 2.5 (25th Aug 08 at 7:42pm UTC)
ok round 2 .. where the hell on this thing is the egr.. I cant seem to find it. Smiley

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Re: failed NOx jeep 2.5 (26th Aug 08 at 1:15am UTC)
It may not have an EGR, Chrysler/Jeep is notorious for cat convertors shit'n out. A new ($90) cat will mask alot of problems if your in a crunch to get it smogged. Also, check for vacume leaks
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Re: failed NOx jeep 2.5 (5th Sep 08 at 12:35am UTC)
^^x2
On chryslers the #1 reason for failed smog is a bad cat.

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Re: failed NOx jeep 2.5 (5th Sep 08 at 1:19am UTC)
You are correct no EGR. It does have a Aftermarket cat already but may need another? Also was told Decarbonizing works, the water down the intake and fuel system cleansing. I did the h2o down the intake (dripping 20oz bottle) And doing the fuel sytem cleaner.

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Re: failed NOx jeep 2.5 (5th Sep 08 at 4:34am UTC)
A generic cat won't work. I've seen a brand new generic cat fail on a early 90's dakota. When we installed the OEM part it passed with flying colors.

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