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Old 04-30-2012, 11:57 PM   #551
1 Lucky Texan
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Originally Posted by J-horn92 View Post
If you remove the air pump completely does it kill your mpg, or does it not have any effect at all?
zero noticeable effect. The entire system is only active for 20-40 seconds at a cold start. It replaced front cat converters.
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Old 05-01-2012, 12:24 AM   #552
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And it eliminates something that can eventually fail.
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Old 05-01-2012, 12:56 AM   #553
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Originally Posted by u2_m4r1n3
And it eliminates something that "will" eventually fail.
Fixed that for you
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Old 05-01-2012, 04:42 AM   #554
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Originally Posted by J-horn92 View Post
If you remove the air pump completely does it kill your mpg, or does it not have any effect at all?

No effect after the initial 90 seconds or so. I can't tell the difference. I suspect once you take out the factory downpipe that the secondary air has no actual function.
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Old 05-01-2012, 05:48 AM   #555
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The primary function of this system is to add extra air into the cylinders during the first 20-30 seconds of cold start up to lean out the mixture a bit and heat up the catalytic converters so they work more efficiently.
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Old 05-01-2012, 10:29 AM   #556
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Originally Posted by J-horn92 View Post
If you remove the air pump completely does it kill your mpg, or does it not have any effect at all?
The air system only runs at start up and pumps air into the head/exhaust to help heat up the cats. After about 30 seconds it shuts off.
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Old 05-01-2012, 05:13 PM   #557
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Alright isnt there an atmospheric pressure sensor that I must leave in one of the pumps so I dont have the car run in limp mode?
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Old 05-01-2012, 05:53 PM   #558
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Originally Posted by J-horn92 View Post
Alright isnt there an atmospheric pressure sensor that I must leave in one of the pumps so I dont have the car run in limp mode?
not be be the typical NASIOC ass, but try searching..... in this thread!
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Old 05-01-2012, 06:58 PM   #559
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Thanks for being exactly that.. Lol but yes I have been reading for the last hour and have found my answer. I was just being lazy and didn't want to go through 30 pages of post's. Just trying to save time, I'm sure you understand.
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Old 05-01-2012, 10:08 PM   #560
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^we understand, but you are the 4000th person to come into the thread asking A.B.C. questions that have been answered multiple times....in this thread.

Don't be another Nasinoob

~Evil
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Old 05-02-2012, 12:22 AM   #561
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I really didn't think a yes or no answer would be such a big deal. lol but whatever someone mentioned that it your valve is stuck closed to just delete the codes and move on. If I did this would my car mess up in any way?
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Old 05-02-2012, 12:27 AM   #562
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Quote:
Originally Posted by J-horn92
I really didn't think a yes or no answer would be such a big deal. lol but whatever someone mentioned that it your valve is stuck closed to just delete the codes and move on. If I did this would my car mess up in any way?
yeah your car will explode
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Old 05-02-2012, 01:33 AM   #563
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Has this happened to you?
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Old 05-02-2012, 01:33 AM   #564
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Has this happened to you?
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Old 05-02-2012, 01:34 AM   #565
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I forgot to mention just leaving everything in place, but has this happened to you?
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Old 05-02-2012, 01:36 AM   #566
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I forgot to mention if I left everything in place, but has this happened to you?
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Old 05-02-2012, 01:37 AM   #567
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Wow, definitely didn't mean to post this so many times.
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Old 05-02-2012, 07:10 AM   #568
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Hahahaha nasifail

If your valves are stuck in the closed position, and you are positive of this. Then you can just delete the codes and pull the fuses and be done with it.

But make sure that they are indeed stuck in the closed position, or you will run into problems.

If you have an 07 the you have yo leave the 5 pin sensor connected from the drivers side valve. The other valve has only 2.

Hope that helps. If you have any more questions free free to pm me

~Evil

Last edited by EvileyeZ88; 05-02-2012 at 10:54 AM.
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Old 05-02-2012, 08:53 AM   #569
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Originally Posted by EvileyeZ88 View Post
Hahahaha nasifail

If your valves are stuck in the closed position, and you are positive of this. Then you can just delete the codes and pull the fuses and be done with it.

But make sure that they are indeed stuck in the closed position, or you will run into problems.

If you have an 07 the you have yo leave the 10 pin sensor connected from the drivers side valve.

Hope that helps. If you have any more questions free free to pm me

~Evil
Agree on all this but I think the sensor connector only has 5 pins.
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Old 05-02-2012, 10:55 AM   #570
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^yuuuup its been about almost 2 years since I did this, surprised I remember as much as I do
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Old 05-05-2012, 02:45 PM   #571
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My 2006 Impreza wrx just threw these codes at me a p2440 and p2442.My cobb accessport says its my secondary air injection valve bank one and bank two are stuck open. I dont know what they are could someone please tell me if these are harmful to my engine and should be fixed very soon or is it alright just to clear them with my accessport?

Thank you
Ronnie
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Old 05-05-2012, 08:17 PM   #572
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It is a bad thing. You need to either replace your valves, or install block off plates and delete all related codes.

You should read through this thread, it has all the information you could possibly need to know about the subject.

~Evil
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Old 05-07-2012, 01:27 AM   #573
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Just an update for my car.
Had the P0410 code, and I will conform that it is just the air pump itself that has gone bad. I bought a used pump off a nasioc member and its just fine now. Next time I have a problem... delete plates are going on.
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Old 05-07-2012, 02:51 AM   #574
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Had the airpump off my car for years, no issues short of a few codes.
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Old 05-14-2012, 08:48 PM   #575
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If you buy some block off plates do you need to buy some gaskets, or can you just reuse the old ones?
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