What is P0411 diagnostic code?

Trouble code P0411 is a generic OBD-II DTC (digital trouble code) which indicates a problem with your vehicle’s secondary air injection system. The secondary air injection system pumps air into the engine’s exhaust stream when the engine is cold and while decelerating.

What could cause a P0411 code?

Code P0411 may get registered when the amount of air entering the exhaust is not what the powertrain control module (PCM) expects. A traditional air injection system contains the following components: Pipes and hoses that transport the air from the pump to the exhaust manifold and/or catalytic converter.

What causes a secondary air injection system malfunction?

A faulty pump is generally the most frequent cause of the system failing. Faulty ground and voltage supply can also cause the pump to fail. Blocked or leaking lines can also cause the failure or malfunction of the control or combination valve, resulting in the failure of the secondary air system.

Where is secondary air injection valve?

Secondary air valves are an integral part of the secondary air system. They are fitted between the secondary air pump (1) and exhaust manifold. They prevent pressure peaks in the exhaust flow from damaging the secondary air system and exhaust gas or condensate from entering the secondary air pump.

How do you fix a P0411 code?

What repairs can fix the P0411 code?

1. Air pump replacement.
2. Removing carbon buildup from secondary air system.
3. Vacuum hose replacement.
4. Air solenoid replacement.
5. Repairing or replacing wiring harness issues.

How do I know if my air pump is working?

Usually, a failed air pump will produce a few noticeable symptoms that can alert the driver that the vehicle requires attention.

1. Engine is running rough. One of the first symptoms of a bad or failing smog pump is a rough running engine.
2. Reduced horsepower.
3. Check Engine Light comes on.

How do I know if my secondary air pump is bad?

5 Symptoms of a Bad Secondary Air Injection Pump

1. 1) Check Engine Light.
2. 2) Failed Emissions Test.
3. 3) Weak Acceleration.
4. 4) Engine Stalling.
5. 5) Low Idle.

Can I drive with a P0410 code?

You may drive your vehicle with a P0410 however keep in mind your vehicle will not pass a smog inspection. Problems with the air injection system will not cause any driveability symptoms. The check engine light or malfunction indicator lamp will be illuminated as long as a P0410 is recorded in the ECC.

How do you fix a secondary air injection system malfunction?

How do you fix a secondary air injection system malfunction?

1. Replace both the air pumps and the one-way check valve.
2. Try and clean the air pump and test it. The one-way air check valve must be replaced as well.
3. Replace the inlet hose of the air pump.
4. Replace the fuse of the air pump (you can find it under the hood)

How much does it cost to fix a secondary air injection?

If your secondary air injection system is failing or damaged, then the secondary air injection system repair cost will run between $270 and $390. The labor should usually cost under $100, while the parts cost on average run at around $250.

Do you need a secondary air pump?

The system is critical to help cars achieve government emissions standards. So, the law says you need a secondary air injection system. Which begs the question: Does a car need a secondary air injection system to run? Strictly speaking, no, it doesn’t.

How much does it cost to replace a secondary air pump?

All cars are required to have secondary air injection systems, which make exhaust emissions cleaner and help to combust more harmful gases. If your secondary air system fails, then replacing it will cost you between $270-$390. The labor should run you about $90, while parts cost, on average, about $250.

What does trouble code p0411 stand for?

P0411 Code Definition: Secondary Air Injection System Incorrect Flow Detected. Trouble code P0411 is a generic OBD-II DTC (digital trouble code) which indicates a problem with your vehicle’s secondary air injection system. The secondary air injection system pumps air into the engine’s exhaust stream when the engine is cold and while decelerating.

What to do if your GMC Terrain has a p0411 code?

There are several avenues of repair for a P0411, such as cleaning the secondary air passages—a common fix on GMC Terrain vehicles. Make sure to figure out the appropriate resolution by researching some of the fixes other people have employed to address a P0411 on their vehicle (assuming it’s the same vehicle as yours).

How can I fix the p0041 code on my car?

As with any DIY repair, we advise that you utilize all of the auto repair resources and guides available online to help you figure out the proper steps to fix the P0041 code. You can also get an ALLDATA single-vehicle subscription, which will be useful for this fix and for any other future repairs your vehicle may need.

How much does it cost to repair a p0411 Chevy?

The cost of diagnosing the P0411 CHEVROLET code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.