Chck Eng Po1000/Po411

24KStang · February 8th, 2010, 08:38 PM

Can anyone tell me if they have had these poblems and what they did to correct it? I really need help passing smog, its time to register my car..Thanks for all help or opinons..

stephen · February 8th, 2010, 10:53 PM

P0411 Secondary Air Injection System Incorrect Flow Detected

Something is wrong with the air injection system which feeds air into the ports on the front of the exhaust manifold. There is an air injection pump which may be the problem.

24KStang · February 9th, 2010, 12:17 AM

could the hoses be craked were do i find the pump at? Thanks..

stephen · February 9th, 2010, 09:26 AM

The following tells about it. The pump is supposed to be in the right fender well (probably
have to take out the inner fender). There is also a valve that is vacuum controlled and
the hose could be bad as well.

My 1999 Mustang 3.8 is getting code P0411 - Ford Mustang Forums

lcorriveau3 · February 9th, 2010, 12:22 PM

^^^ +1 He is right.

24KStang · February 9th, 2010, 09:13 PM

Thanks..
I am just going to replace the pump I ordered it today might take a week..

lcorriveau3 · February 10th, 2010, 06:05 AM

Actually had the same issue about 5 years ago. Had it replaced and no issues since.

jamg · February 10th, 2010, 04:11 PM

I also had the same code po411 replaced the air pump and no code since then

24KStang · February 19th, 2010, 01:05 AM

replaced pump but there is a loud noise coming from it when I idle, maybe it isnt aligned?
Check engine lite is gone though

mcqueen · February 19th, 2010, 01:10 AM

Originally Posted by 24KStang

replaced pump but there is a loud noise coming from it when I idle, maybe it isnt aligned?
Check engine lite is gone though

You just need a louder exhaust. All the little noises disappear when the exhaust gets louder

j/k

b1gdaddy98 · February 19th, 2010, 01:13 AM

+1 mcqueen +1 lol we drown our pains and worries with exhaust!

24KStang · February 19th, 2010, 01:28 AM

lol $521 magnaflows....to drown out noises? Its when I am idle though(at red lights)....

February 8th, 2010, 08:38 PM	#1
24KStang Newbie 2k 3.8 5spd Not yet.. Join Date: Feb 2010 Location: San Diego Posts: 43 iTrader: 0 reviews	Chck Eng Po1000/Po411 Can anyone tell me if they have had these poblems and what they did to correct it? I really need help passing smog, its time to register my car..Thanks for all help or opinons..

February 9th, 2010, 12:22 PM	#5
lcorriveau3 Enthusiast 1999 YAWN!!! what?? Join Date: Nov 2009 Location: N'oreast Posts: 692 iTrader: 0 reviews	^^^ +1 He is right. __________________

February 10th, 2010, 06:05 AM	#7
lcorriveau3 Enthusiast 1999 YAWN!!! what?? Join Date: Nov 2009 Location: N'oreast Posts: 692 iTrader: 0 reviews	Actually had the same issue about 5 years ago. Had it replaced and no issues since. __________________

February 19th, 2010, 01:13 AM	#11
b1gdaddy98 Hardcore Enthusiast 1998 Mustang V6 Vert Join Date: Feb 2010 Location: North Carolina Posts: 1,358 iTrader: 0 reviews	+1 mcqueen +1 lol we drown our pains and worries with exhaust! __________________ NCMM ORIGINAL NCMM Home Page Vert Crew #03

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February 8th, 2010, 10:53 PM	#2
stephen Hardcore Enthusiast Join Date: Feb 2007 Posts: 1,262 iTrader: 0 reviews	P0411 Secondary Air Injection System Incorrect Flow Detected Something is wrong with the air injection system which feeds air into the ports on the front of the exhaust manifold. There is an air injection pump which may be the problem.

February 9th, 2010, 12:17 AM	#3
24KStang Newbie 2k 3.8 5spd Not yet.. Join Date: Feb 2010 Location: San Diego Posts: 43 iTrader: 0 reviews	could the hoses be craked were do i find the pump at? Thanks..

February 9th, 2010, 09:26 AM	#4
stephen Hardcore Enthusiast Join Date: Feb 2007 Posts: 1,262 iTrader: 0 reviews	The following tells about it. The pump is supposed to be in the right fender well (probably have to take out the inner fender). There is also a valve that is vacuum controlled and the hose could be bad as well. My 1999 Mustang 3.8 is getting code P0411 - Ford Mustang Forums

February 9th, 2010, 09:13 PM	#6
24KStang Newbie 2k 3.8 5spd Not yet.. Join Date: Feb 2010 Location: San Diego Posts: 43 iTrader: 0 reviews	Thanks.. I am just going to replace the pump I ordered it today might take a week..

February 10th, 2010, 04:11 PM	#8
jamg Newbie Join Date: May 2009 Location: north carolina Posts: 30 iTrader: 1 reviews	I also had the same code po411 replaced the air pump and no code since then

February 19th, 2010, 01:05 AM	#9
24KStang Newbie 2k 3.8 5spd Not yet.. Join Date: Feb 2010 Location: San Diego Posts: 43 iTrader: 0 reviews	replaced pump but there is a loud noise coming from it when I idle, maybe it isnt aligned? Check engine lite is gone though

February 19th, 2010, 01:28 AM	#12
24KStang Newbie 2k 3.8 5spd Not yet.. Join Date: Feb 2010 Location: San Diego Posts: 43 iTrader: 0 reviews	lol $521 magnaflows....to drown out noises? Its when I am idle though(at red lights)....

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