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Old 10-29-2007, 06:54 AM
Join Date: Oct 2007
Posts: 1
Default Error Code PO411

I'm new to this forum, I see there are alot of smart people here. My qyestion is that I have a 2001 VW Jetta VR6 The check engine light has come on had It scanned and the code was PO411 (Secondary Air Injection System Incorrect Flow) on the DTC Pending (Codes)said ( No Faults Detected) the problem is when I clear it ,it goes for a week or so and comes back on.. In my State New hampshire if you have a Check Engine Light on during Inspection they fail you ifI erase code error before I go in will they detect anything through there Equipment I would really like to
fix the propblem if any
Thanks for any Help
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Old 10-29-2007, 11:26 PM
Join Date: Jul 2006
Posts: 135
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Default RE: Error Code PO411

if you clear the code and you have it inspected before the light comes back on then they won't be able to detect it.

not sure what it is, MAF sensor, possible vacuum hose leak, not sure
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Old 04-28-2008, 07:21 PM
Join Date: Apr 2008
Posts: 21
Default RE: Error Code PO411

its the secondary air injector.... had same problem.... My secondary air injection was unstuck..... or it could be one of ur hose getting clamped by something.......if u earse it and doesnt come back then ur fine if not u better fix it....
98 VW Jetta Vr6 Custom cold air intake
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Old 04-28-2008, 07:34 PM
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Join Date: Dec 2007
Posts: 769
Default RE: Error Code PO411

probably a vacume line off of the deverter valve
and it will not pass a test if you clear it before you take it in
it needs to go through a drive cycle before it gets ready status
thats why it takes a few days to retriger the light
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Old 12-16-2012, 10:56 AM
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Join Date: Dec 2012
Posts: 2

you must drive 80to90 miles. after u turn the light off. to reprogram the ecm.
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Old 12-17-2012, 05:02 AM
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Join Date: Sep 2009
Location: Stoke on Trent, England
Posts: 1,616

You've brought up an old thread Robert.

VAG Error Code: 16795
EOBD II Error Code: P0411

Fault Location:
Secondary Air Injection (AIR) System - Incorrect Flow Detected

Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) ON.

Secondary air injection (AIR) pump.
Secondary air injection (AIR) valve (N112).
Secondary air injection (AIR) hose(s).


2010 Golf GTD (170) CBBB, 5 Door, Shadow Blue (P6/D5Q), Flat Tyre Indicator, Basic Protection Pack + VCDS.
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2000, air, code, codes, erase, error, flow, incorrect, injection, inspection, jetta, po411, secondary, system, volkswagen, vw

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