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Thread: Do I need to plug this hole?
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05-21-2008, 02:17 PM #1
Do I need to plug this hole?
I had headers installed and had the EGR and AIR systems removed. I looked under the hood and I saw this open tube sticking out from under my cowl. I'm pretty sure it's from the AIR system. Anyhoo, do I need to plug it up or remove it or anything?
Thanks!
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05-21-2008, 02:42 PM #2
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Red Tint Jewelcoat- 2008 Trailblazer SS
Almost looks like the brake booster line that goes into the back of the intake. You would know if that was the case though.
It is probably something related to AIR.
Can you get your hands on it and see where it goes?? Or what it appears to be connected to?
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05-21-2008, 02:55 PM #3
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that looks like the line that comes from the manifold and goes to to the air intake right behind the air filter. trace it back and see what it goes to. if thats what it goes to it wouldn't hurt to plug it. that is only there for the stupid emissions crap. that line takes part of the unburnt fumes and sends them back through the engine.
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05-21-2008, 03:41 PM #4
That looks like that emissions line that connects to the aluminum elbow (F-Pipes) crap that always gets plugged and set off my idiot lights. I hate that thing!!! Mine is plugged inside the F-Pipe now and the light is on, but it doesn't effect the performance one bit.
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05-21-2008, 04:07 PM #5
It is the hose to the AIR system. You should just remove the whole unit, it shaves like 15 lbs. I know there is a thread on here about how to remove it.
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05-21-2008, 04:44 PM #6
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05-21-2008, 06:30 PM #7
Cool. Looks like I have a project for the weekend. Is it ok to leave it open like that until this weekend?
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05-21-2008, 06:35 PM #8
get rid of it and/or unplug your air pump relay so that annoying sob doesn't kick on all the time.
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05-21-2008, 06:45 PM #9
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05-21-2008, 07:10 PM #10
It idles fine. About 500 rpm. I'll mess with it while I'm at work tomorrow. Thanks for the tips, guys!
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05-21-2008, 08:37 PM #11
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Bright Rally Red- 2000 Camaro SS #5075 M6
LS6 Intake next???
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05-22-2008, 02:05 AM #12
I blocked off the air from my headers and I still have hoses disconnected. Ive been driving it for 2 months and i havent had a problem
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05-22-2008, 03:04 AM #13
i just hooked all mine back up to the headers. if you dont get it tuned your check engine light will be on constantly
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05-22-2008, 03:56 AM #14
Remove the whole air/egr system, they are useless. You will have to delete these codes so your computer does not thow a ses light.
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05-22-2008, 05:24 AM #15
Well, I already have an SES light, P0154, but I'm thinking that's because I'm running rich right now until I get a tune. I've driven it 3 times now with that hose open and nothing weird so far. Idle is good, it drives fine. It sucks more gas, but again, I'm running pretty rich right now. I'll be getting a tune in a few weeks, hopefully the SES will turn off then, if not, I may get those Bosch 13111 O2 sensors that people seem to like around here.
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05-22-2008, 08:09 AM #16
If you remove the air pump and all the plumbing, it will free up about 15 pounds. Just type in your search ls1 air and egr removel and you will find instructions on how to remove this stuff. Plus it cleans up your engine bay so you can get to those hard to reach spark plugs. I also just use the stock gm O2 sensors that you can get at your local dealership. They work fine with my performance engine. Yes, a tune is a great idea to remove the codes and it will get you better gas mileage.
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05-22-2008, 08:21 AM #17
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[]D [] []V[] []D- 1999 trans am
the title of this thread is funny...
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05-22-2008, 08:25 AM #18
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05-22-2008, 11:55 AM #19
Hey, I just thought of something I could do with that hose. I think I'll split it and wedge it between my cat that vibrates against my floor sometimes. Think it could handle the heat? Or should it get out of the kitchen? Man, that was a lame joke.
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05-22-2008, 03:45 PM #20
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1999 Formula WS6 M6-sold- 2001 Silverado Z71
no it won't handle the heat
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