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  #1  
Old 07-01-2019, 12:02 PM
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Can I delete my secondary Air System and how

Hey Guys, some time ago I deleted my secondary air system on my E36 M3 and it was quite easy. Is it possible to do on my 4.6is or does it throw all kinds of codes that can't be erased making the vehicle run shitty?
Thanks
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Old 07-01-2019, 12:57 PM
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Why would you want to do this in the first place?
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Old 07-01-2019, 02:20 PM
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Yes you can. But you will need to code it out too. They make block offs. Not sure if that requires an engine tune?

Edit: Nevermind, I was assuming m54 question. I have no idea if possible on a 4.6.
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Old 07-01-2019, 04:18 PM
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How would the government view such removal?
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Old 07-02-2019, 11:40 AM
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.1 decrease 0-60 time = $1000 & DIY
 
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I have replaced the fan motor. Symptoms were very rough idle for a short period of time on a cold start. There were codes. I don't remember if I had a check engine light.
Depending on where one lives and usually who does the inspection it may not and should not pass an emissions test.

https://bimmertips.com/what-does-the...y-air-pump-do/
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Old 07-02-2019, 01:29 PM
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^ I think (just guessing) the only place he might have a problem world be California as I've read the refs there can be meticulous with the visual.

But that's just my guess. And not a chance I'd want to take personally.
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2005 X5 4.4i Build 04/05 Maintenance/Build Log
Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles)


2006 X5 4.8is Build 11/05 Maintenance/Build Log
Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles)

2010 X5 35d Build 02/10
Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles)
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Old 07-02-2019, 02:37 PM
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In Canada we don't have to get our vehicles emissions inspected and signed off on. I'll probably hollow out my cats also. As for getting rid of it, if all it is for is emissions and getting the cats up to temp faster on cold start, one less thing to go wrong with this vehicle is an advantage in my books. Less under the hood also. I may also use that added space to run a larger custom box for a cold air intake.
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Old 07-02-2019, 03:14 PM
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.1 decrease 0-60 time = $1000 & DIY
 
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The secondary air pump doesn't restrict the size or flow of a Dinan cold air box.

Canadian emission standards generally parallel those of the EPA. How does Canada address violations? Are folks on their honor?
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Old 07-02-2019, 04:41 PM
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I unplugged mine a few months ago from how loud it has been getting. I assume it went bad but it was hurting my ears in the cabin. Sounded like it was going to blow. I will pick one from a yard sometime and swap..
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Old 07-02-2019, 07:50 PM
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Quote:
Originally Posted by bcredliner View Post
Canadian emission standards generally parallel those of the EPA. How does Canada address violations? Are folks on their honor?
Yep, Unfortunately nothing is enforced here.
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