Definitive answer needed on emissions and O/R H pipe

CandyRedGT

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I can't pass. I live in Fort Bend county. My sticker has been expired for 8 months or so now. My check engine light won't stay off for more than half a day even when the shop messed with the tune. I've had enough of all the bs trying to pass and I don't feel like having to find a shop every year I can bribe to pass me. Im switching to a catted h-pipe.
Maybe you need a different tuner?????
 

CandyRedGT

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If I remember correctly, I think the government or someone made MIL eliminators illegal so you technically shouldn't be able to purchase them anymore.
I tried to get them but the speedshop said illegal/cannot get them anymore....sux!!!
 

bullittrevor

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Hmmmm....well MY tuner has my light staying off???? That is what i was replying to.
your light my be staying off, but even if the light is off you would still fail in south texas where the have the obdII scanners becuase you would have too many "not ready's".
 
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Y'all are wrong about the tune. The state computer scanner machine will know your O2s and EVAP are not reading ready, and will fail you out. If you want to keep one pipe on all the time, the only solution is to use spark plug non-foulers on the rear O2s to pull the sensor out of the exhaust stream enough to make them think there are cats. You'll still get the EVAP showing not ready, but you can pass with one NOT READY flag.

Good how-to here: link. I believe our O2 sensors use 18mm threads.

Doug (KemahGT here) did the non-fouler thing and claims to have passed. He double stacked two on each rear O2, which involves drilling out one. Of course, you also need to find a clueless inspection shop that either won't visually inspect under your car, or won't know what a catalytic converter (or lack thereof) looks like. I swap pipes with a catted midpipe, but I think I'll try this next time around.

Also Kyle, utilize the free rental OBD scanners at Auto Zone. You can drive around with the scanner connected and see whether your various emissions components (O2s, catalyst, evap, etc) are reading READY. Very helpful, when you're driving the cycle and such.


Thanks for the link to the writeup. Would these accomplish the same thing and has anyone used them:
http://www.brenspeed.com/730-2442.html
 

TexasKyle

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So, I am going to go O/R with the H and see what the heck happens. I will do the double stacked couplers and leave the O2s on. If it doesn't work, well....I will cross that bridge when I get there.
 

my06GT

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lol, obviously you didn't read what anybody has said in this thread, it's not possible to turn it off in the tune.



It is possible to turn off in the tune just like Tanner said. I dont know how its done but I know I had my long tubes with off road h-pipe pass. They dont show up as not ready they show up as not supported. Now with that being said I have tunes from 3 different places that would show up as not ready and fail but there is one vendor on here that I have their tune and it shows up as not supported and passes every time I have hooked it up.
 
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Fullboogie

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To me, "not supported" would clearly show a testing station they are not working. If you can pass like that in LA, more power to you. I sure wish we could in TX.
 
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