Question about 2001 Pontiac Montana

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Check engine light is on. a code of po410 comes up on the obdll. secondary air. can someone tell me what i need to do.

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That could mean quite a few things. Simply put, the engine computer isn't seeing airflow in the exhaust system when it tells the air injection system to turn on. It could mean you have a defective air pump, bank1 or bank2 shutoff valve problem, a vacuum solenoid not turning on, a vacuum leak to the vacuum solenoid, incorrect/missing air injection plumbing. This problem requires the use of a scan tool capable of commanding on the air injection pump, and watching the oxygen sensor data to see where the problem is in the system. I highly recommend using a scan tool capable of bi-directional control, or taking it to a reputable shop capable of diagnosing emission control systems. This code does not tell you what part to replace, but rather where to start your diagnosis.

Posted on Oct 20, 2013

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Let me know if this helps. Thx

Posted on Oct 16, 2013

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Posted on Jan 02, 2017

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SOURCE: check engine light on

check the pump it self they fill up with water and the motor goes bad prob needs new motor and then change fuse under hood

Posted on Apr 06, 2009

lindsay836
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SOURCE: check engine light on; code indicates secondary

3.1 LTr or 3800 ? secondary air pump should be replaced. www.rockauto.com

Posted on Feb 04, 2010

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SOURCE: check engine light on w/po410 code what part is

Yours must have the California emission system. They use a secondary air injection system to help reduce emissions. It could be that the pump has gone bad. Have you tried to reset the code? I've seen cars that had this problem and just to erase the code took care of the check engine light. If that doesn't work, make sure your electrical wires are ok, and plugged in. Check to make sure you have voltage at the plug at the pump motor, you may have to start the car to check it. If there is no power there, then check your fuses and relays.

Posted on Apr 06, 2011

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1 Answer

2007ford fusion code po410 and po491


The Secondary Air System pumps outside fresh air into the Exhaust System during cold engine start up. This additional air helps burn up the highly rich exhaust emissions that are produced when the engine is warming up. The Secondary Air System typically has an Air Pump and some tubes or plumbing to route the air. The system also has a solenoid and Check Valve(s) to control the air flow.

Apr 09, 2013 | 2007 Ford Fusion I4 SEL Sedan

1 Answer

Code po410


P0410 - Secondary Air Injection System Malfunction
Possible causes- Faulty Vacuum hoses damaged
- Faulty Air Pump inoperative
- Air bypass solenoid harness is open or shorted
- Air bypass solenoid circuit poor electrical connection
- Air bypass solenoid leaking/blocked or stuck open/closed
- Air diverter valve leaking/blocked or stuck open/closed

This is likely a pump problem caused by water being sucked into the secondary air injection pump under the hood.

Aug 29, 2012 | Chevrolet Cars & Trucks

2 Answers

I have the following codes po410 and po491.......can u please tell me what they are so I can get my car fixed asap


P0410 - SECONDARY AIR INJECTION (AIR) SYSTEM
P0491 - SECONDARY AIR INJECTION (AIR) SYSTEM INSUFFICIENT FLOW (BANK 1)

Secondary air injection (trademarked as Air Injection Reactor) is a process where fresh air is injected into the exhaust system to allow for a fuller combustion of exhaust gasses.

The possible causes are:
SAIR pump low or now air flow
SAIR bypass solenoid leaking/blocked or stuck open/closed
SAIR diverter valve leaking/blocked or stuck open/closed
SAIR air hose restriction
SAIR vacuum hose restriction or leaking

Check to make sure your air filter isn't dirty - and replace if needed. Otherwise I would suggest having your local trusted auto repair facility diagnose and repair the issue. A scan tool will be needed to properly diagnose the issue.

May 27, 2011 | 2006 Ford Focus

1 Answer

Engine light came on, code po410 came up.


This has to do with the secondary air pump system, this system is used at cold start-up and involves three components; air pump, solenoid valve and a relay. Many times the valve becomes stuck or clogged, the relay has also been known to fail.

May 11, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

Engine light code P0410


a po410 code is, Secondary Air Injection System Malfunction.

Jan 30, 2010 | Saturn SL1 Cars & Trucks

2 Answers

Engine won't idle, misses and knocks, have po410 and po300 fault codes.


What type of vehicle and if you have codes the book should tell you what those codes are. look them up and well go from there.

Aug 06, 2009 | 2000 Chevrolet S-10

2 Answers

I have a 2004 buick rainier and i,m getting a code po410


P0410 Secondary Air Injection System Malfunction
I am very familiar with this failure code, you are going to have to replace the secondary air injection pump, it has a failed motor in it, the code really indicates no airflow from the pump when commanded to be on.

May 28, 2009 | 2004 Buick Rainier

1 Answer

Check engine light on pulled code po410


this is caused by a defective seconday air injection pump, replace the pump.

Apr 06, 2009 | 1999 Chevrolet K1500

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