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Unread 03-13-2004, 10:12 AM   #1
greenmachine99
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1999 TJ Wrangler 
 
Join Date: Mar 2004
Location: Hagerstown,Maryland
Posts: 1,709
emissions

Took the ZJ in for the 2nd emissions test after failing the 1st time. It failed again after having the whole EGR system replaced. Its running high on hydro carbons. Any idea's what would cause this and how to fix it? Thanks for any info.

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Unread 03-13-2004, 10:26 AM   #2
Meerkat
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1996 ZJ 
 
Join Date: Apr 2003
Location: Belle, WV
Posts: 4,930
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Originally Posted by greenmachine99
Took the ZJ in for the 2nd emissions test after failing the 1st time. It failed again after having the whole EGR system replaced. Its running high on hydro carbons. Any idea's what would cause this and how to fix it? Thanks for any info.
What temperature thermostat do you have? If you are running a 180 instead of the stock 192, the engine will run rich will produce more hydrocarbons.
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Black 1996 5.2L ZJ Limited
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Unread 03-13-2004, 05:53 PM   #3
shookwell
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Join Date: Feb 2003
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Posts: 484
ask around, for a few extra bucks you can usually get an emissions sticker even if you cant pass . . .
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