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QTP Headers are installed! Have some questions...

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Old May 23, 2005 | 08:37 PM
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Default QTP Headers are installed! Have some questions...

Ok, I finally got my headers installed this weekend. I'm ready to put my true dual system on now (Lane's duals). Anyway, I have a couple questions real quick that I have to know before I start the car.

1. Just to be 100% certain, you use the front O2 sensors with the extensions that hook to the headers, right?
2. For the rear O2 sensors, do you just unplug them at the harness, or do you zip tie them up somewhere? Will not running these set off a code? I'm getting HPTuners as soon as 2.0 is released, so I can fix this. I HAVE to know that there is nothing wrong with driving the car with the SES light on after installing headers. Can someone please discuss this? What codes will be set? Will driving the car with these codes cause any problems?
3. For the AIR system: Since I got the race version and am not running cats (and since I can't !AIR until after I get HPTuners), how do I block off the AIR system? Should I remove it, or can I just make a block off plate for the tubes that is like the gasket without the hole in the center for the air to pass through? I'm talking about the part of the system that hooked to the stock manifold.
4. Will it hurt anything or set off any extra codes if I started the engine up running open headers. I just want to hear what it sounds like and would only let it run for like 15 seconds. Is this ok without any kind of extension on the header collector?


If you guys could help me out, I would really appreciate it. The install went REALLY smooth by the way. But my drive on, 4 post lift helped a lot I've got pictures to compare ground clearance that I will post ASAP. I still have to take the "after" pictures though, since the duals aren't on. Thanks!
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Old May 23, 2005 | 08:48 PM
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I just put my QTP's on this weekend as well. I put it with their electric cutout off-road y though, and that was a bitch to maneuver into place. I've got it to as good of clearance as I think I can get, but something is still rattling in the thing and I don't know what it is.

1. Use the front O2 extensions and plug those into the header collectors. You will plug the extensions you have into the original wiring harness, then plug the sensor inot the other end of the extension.
2. For my rear O2's I left them plugged in and ziptied them up somewhere. I didn't want to risk some water getting into the wiring harness and shorting out the electrical system. But I wonder if having them still plugged in and reading information is worse than just unplugging them and the computer thinking they're missing? When I have Speed Inc. tune it I'm just going to see what they recommend to do with them.
3. I'm not sure the best approach.
4. It won't hurt anything to start it up that way, as long as all the sensors you're going to plug in are, then you won't set off anymore codes by running open headers. After starting mine up I wanted to drive around for a bit like that, but I was using someone elses lift and so didn't have that much time.
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Old May 23, 2005 | 08:49 PM
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1. That's correct.
2. Just get some O2 sims and you won't have to worry about setting off the SES light. I don't think it would hurt anything either way but I'm not positive on that.
3. Just take all the AIR stuff out; hoses, pump, everything. It's pretty simple to do.
4. You shouldn't hurt anything just by starting it up, I drove mine to the exhaust shop with open headers when I put mine on.
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Old May 23, 2005 | 08:49 PM
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1. Yep
2. It will set a off code, you need either o2 sims or ls1edit/hptuners to turn the code off.
3. Just remove it
4. Nope, I did it when I installed my headers. It amazing
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Old May 23, 2005 | 09:23 PM
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1 yep
2 remove the back one, i put electrical tape over the end jsut for perosnal peace of mind.
3. jsut remove it, it will set off a code eventually, but nothing hptuners can't fix
4 i ran mine for over 40 miles on open headers, till i got my y on
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Old May 24, 2005 | 12:15 PM
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Started it up last night with open headers, and all I can say is WOW!

Now I can't wait to get the duals on. Hopefully Wednesday night.
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Old May 24, 2005 | 12:18 PM
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Love my QTPs.
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Old May 24, 2005 | 08:57 PM
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i love mine too, wish they were less expensive, or even free, imagine that!!!
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Old May 24, 2005 | 10:02 PM
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Use this... http://www.ls1camaro.net/sections.ph...ticle&artid=70
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Old Jun 3, 2005 | 01:38 AM
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iv had my QTPs w/ no cats and Loudmouth for a year now i love the way it sounds,, everyon ei know love sthe sound,, people are like loudmouth sound sliek **** with headers but yea people are scared of you when your that loud!!!!
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Old Jun 29, 2005 | 02:31 AM
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im getting ready to install a set of qtp LT's on my car too, do you guys have any suggestions or tricks to make the install go smoothly ??? thanks -Josh
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Old Jun 29, 2005 | 09:51 AM
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likewise. i dont have a lift so i might have to have mufflex install em. but who knows what that will cost. how much ground clearance do you need to get these things in and out?
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