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Unread 11-11-2013, 08:04 PM   #1
Dysan
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1999 WJ 
 
Join Date: Aug 2012
Location: Tomball, Texas
Posts: 71
Moving to Texas, odd emmisions question,

I will be moving to the Houston area and I know they do emmisions testing. Now I wonder if having a quick disconnect for the battery would affect the test. I have the quick disconnect because I have been having electrical issues that I have been trying to diagnose for the past six months and installed the quick disconnect to make it easier to disconnect the battery. I will hopefully fix the electrical issue before the move, but wanted to now if the quick disconnect will affect the emmisions test.

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Unread 11-11-2013, 08:31 PM   #2
ttusqrl
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Location: Dallas, TX
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No reason I could see this affecting emissions as it doesn't do anything from a testing perspective. They toss a sniffer in the exhause, check the gas cap, and that's about it.
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Unread 11-11-2013, 11:21 PM   #3
mitchlandry
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2005 TJ Wrangler 
 
Join Date: Apr 2008
Location: Tomball TX
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Only foreseeable issue would be that disconnecting the battery on some vehicles can clear the ECM in which will not send a "ready" signal to the OBDII scanner. Not sure if Jeeps reset after short battery disconnects, but I'm sure they would after an extended.

Also, I not familiar at when OBDII was introduced so you may not have any issues with a 99', just throwing this warning out there as I have a friend that has to deal with this every time he does an inspection, but he has a different make / model vehicle.
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Unread 11-20-2013, 10:50 PM   #4
SchizophrenicMC
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Location: Arlington, Texas
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If you reset your OBD-II vehicle (all 1996 and newer vehicles) it will report all its readiness monitors as NOT-READY. If more than 3 readiness monitors report NOT-READY, you automatically fail emissions. OBD-II vehicles are tested by OBD report, not the exhaust sniffer.
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Unread 11-25-2013, 06:54 AM   #5
Dysan
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Join Date: Aug 2012
Location: Tomball, Texas
Posts: 71
Thanks for the replies, haven't had much time to get on with packing and getting everything ready to move over there. But how long after a reset would it be OK, because I can usually drive around for a while and not have to unplug as long as if doesn't sit for more then an hour I am typically fine and it doesn't mess up.
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Unread 11-25-2013, 11:10 AM   #6
SchizophrenicMC
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By the time the readiness monitors all show ready again, you'll have your light back on. Just fix your error.
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