Question about 2006 Pontiac Grand Prix

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Po411 keeps coming on, wont pass..what could be i know its secondary air flow

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Well it is going to be a pain in the **** to repair without a scan-tool. but if you want to take a stab at it you can inspect the electric air-pump. Also check for broken vacuum lines/hoses.

Posted on Apr 29, 2010

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Posted on Jan 02, 2017

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A4 code p0411


code po411 refers to secondary air injection (AIR) system--incorrect flow detected===causes --AIR pump--AIR valves --AIR hose/s

check AIR hose fitting are tight. Check /replace the valves or pump

Aug 14, 2014 | Cars & Trucks

1 Answer

Troubleshooting code po411 2010 Chevy impala


secondary air injection incorrect flow
with out being able to hook up a scanner and see live engine data
the most common cause that i have seen is a bad solenoid sensor and a bad check valve in the secondary air pump

Jan 20, 2013 | 2010 Chevrolet Impala

1 Answer

Check engine light reads...po411...or, secondary air injection system-incorrect flow...what does this really mean???


sounds to be low air flow. Check filter . could be a faulty mass air flow sensor. good luck

Nov 05, 2012 | 1998 Ford Mustang

1 Answer

How to clean secondary air injection incorrect upstream flow detected Code PO411


The valve may need to be replaced. Only air flows thru the components.

Jul 03, 2012 | 2008 Chevrolet TrailBlazer LT

1 Answer

Engine light stay on and the code reading po411....what does that mean and how can i fix it?


P0411 is Secondary Air Injection (AIR) Incorrect Air Flow Detected. Without knowing what year/Model and engine you have it's a guess as to the proper fix.

Apr 26, 2011 | Chevrolet TrailBlazer Cars & Trucks

2 Answers

What is scanner code PO411


code po411 secondary air injection system incorrect flow,possible causes , faulty air pump or faulty air pump vacuum valve or faulty check valve.

Apr 06, 2011 | 1999 Volkswagen Cabrio

1 Answer

2000 lincoln l.s. v6. code p0411. does anyone know how to fix this problem?


PO411-Secondary Air Injection System
Incorrect Flow Detected

There are a few components to be checked,
so there is no way to tell you what is wrong

Like all problems you will need professional
help.

Mar 13, 2011 | Lincoln LS Cars & Trucks

2 Answers

Po411


This is a code related to the air flow from the air pump (aka pollution pump) into your exhaust system. This air pump takes outside air and injects it in the exhaust stream after the engine to help burn off any residual fuel or pollutants. When P0411 comes up, the control module detects a lack of air flow either caused by a defective air pump, leaking/clogged air hoses, or bad check valves.

Sep 17, 2009 | 2000 Cadillac Catera

2 Answers

Diagnostic code po411


The P0410 code refers to the emissions system.
The AIR pump puts air to the exhaust to lower emissions. It takes in outside air and pumps it through two one-way check valves into each bank of the exhaust.
About 90% of the time that this code is set, the one-way check valves have worn out or failed and allow water (which occurs naturally in the exhaust) back into the pump. In any cold climate, especially in climates with higher humidity, this water may be more excessive. The water partially fills the AIR pump, it can then freeze. When the PCM commands the pump on, if the pump is frozen it cannot turn, thus overloading the circuit and "popping" the fuse.

In here you can find the Trouble Codes List:
The CODE mean P0411 Secondary Air Injection System Incorrect Flow Detected

Good luck!!!

Aug 05, 2009 | 1999 Volkswagen Beetle

2 Answers

Lincoln 1996 what does po411 means what the problem


Secondary AIR System Incorrect Upstream Flow Detected

Possible cause:
Electric air injection pump hoses leaking
Air pump blocked
AIR bypass solenoid leaking or blocked
AIR bypass solenoid stuck open or stuck closed

Mar 04, 2009 | 2001 Lincoln LS

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