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

Typical range: about 400–1,200 dollars for a repair, depending on the vehicle and which components need replacement. Diagnostic fees usually run 60–120 dollars, with labor priced by region and job complexity.

In more detail, the secondary air system helps reduce emissions by injecting air into the exhaust during cold starts. When it fails, the Check Engine Light often comes on with codes such as P0410. Costs vary by car type, whether you use OEM or aftermarket parts, and how accessible the system is to service. The following breakdown covers common parts, labor expectations, and regional differences to help you plan for quotes.

What you’re paying for: key components and their costs

Parts costs vary widely by vehicle model and whether you choose OEM or aftermarket parts. The labor cost is driven by how easy or difficult the system is to access.

• Secondary Air Pump: 150–500 dollars for a new unit; installation labor commonly 1–3 hours.


• Solenoids/Valves and Check Valves: 40–150 dollars per part; multiple parts may be involved depending on the model.


• Hoses, Piping, and Clamps: 20–120 dollars for parts; labor time depends on accessibility.


• Oxygen Sensors (where applicable to the system): 50–200 dollars; replacement labor typically 0.5–1 hour.


• Gaskets, Seals, and Mounting Hardware: 5–60 dollars per item; often included in labor if replaced during pump/valve work.

Note: Some vehicles bundle SAI components into a single assembly, which can raise costs, while others allow replacing individual items at lower price. Always request a detailed parts-and-labor estimate.

OEM vs aftermarket parts considerations

OEM parts are typically more expensive but guarantee exact fit and compatibility, while aftermarket parts can save money but vary in quality. Check warranties and return policies, and get quotes for both options when possible.

Concluding thought: depending on your car and parts used, this category of costs can swing significantly. Always seek an itemized estimate that separates parts and labor.

How the repair usually plays out

A technician typically starts with a diagnostic scan to confirm the fault code and identify the defective component. The repair cost will include a diagnostic fee in many shops, plus labor for removal, replacement, and re-test.

1. Code diagnosis and vehicle inspection: diagnostic fee usually 60–120 dollars; confirms P0410 or related faults and pinpoints faulty parts.


2. Parts replacement: based on the diagnosed fault; pump replacement is most common, but valves or hoses may be swapped individually.


3. Labor for removal and installation: labor time varies by vehicle; pump replacement commonly 2–4 hours, hoses/valves 0.5–2 hours.


4. Post-repair verification: test drive and, if required, emissions recheck to ensure proper operation.

Older or corroded systems can require extra labor or additional parts, which pushes the total toward the higher end of the range.

Regional and vehicle-specific variations

Shop rates and part prices vary by region, and some brands (notably European or luxury models) may command higher prices for OEM parts and specialized labor. Domestic and many Asian models often present more affordable options. Getting multiple quotes and asking for a line-item breakdown helps you compare fairly.

Consider whether you’ll need an emissions recheck after repair in your area, and plan for potential delays if your vehicle must pass an inspection to stay compliant with regulations.

Summary

Repairing a secondary air system is a mid-range automotive fix whose price depends on the vehicle, the exact components involved, and local labor rates. In general, expect a total in the 400–1,200 dollar range, with diagnostic charges around 60–120 dollars. By understanding which parts may fail and obtaining multiple, itemized quotes, you can navigate the repair with a clear budget and find a fair price.

What does a secondary air system do?

That are the most important parts of the secondary. Air system the main one is the obviously secondary air pump which is an electric pump. And actually pumps the air into the exhaust.

How much does it cost to repair a secondary air injection system?

Fixing a secondary air injection system can cost anywhere from $400 to over $1200, with the price depending on the specific issue. A full replacement of the air pump is typically the most expensive repair, potentially costing up to $950-$1200, while other repairs like fixing vacuum hoses or replacing a relay are much cheaper.
 
Repair cost breakdown

• Air injection pump replacement: The most costly repair, often ranging from $250 to over $950, depending on the vehicle model and labor rates.
• Vacuum hoses: These are a very inexpensive fix, costing only about $20 to $50 to replace.
• Other repairs: Fixing other components like the combination valve, a faulty relay, or a vacuum leak can fall in the $350 to $500 range. 

What determines the cost?

• The specific faulty part: Replacing a simple hose is far cheaper than replacing a complex air pump.
• Labor time: Some repairs require more labor than others. For example, the air pump is often more difficult to access and replace. 
• Vehicle model: The cost of parts and labor can vary significantly between different makes and models. 
• Dealership vs. independent mechanic: Dealerships may have higher labor rates, but independent mechanics can sometimes be more affordable. 

What you can do

• Check your warranty: Some emissions systems are covered by a separate warranty. 
• Look for recalls: Some vehicles have recalls for the secondary air injection system, which can make the repair free. 
• Inspect vacuum lines: Before taking it to a mechanic, you can visually inspect the vacuum lines for any obvious cracks or disconnections. 

Note: The final cost will vary depending on the specific diagnosis and repair needed for your vehicle. It is best to get an estimate from a qualified mechanic for an accurate price.

Can a car run without secondary air injection?

Which begs the question: Does a car need a secondary air injection system to run? Strictly speaking, no, it doesn't. If your car doesn't have a smog pump, a couple things can happen.

What happens when a secondary air pump fails?

When a secondary air pump fails, your vehicle may experience performance issues like reduced power and rough idling, especially during cold starts. Other consequences include illuminating the check engine light, failing an emissions test, and a possible exhaust fume odor. The pump itself may make strange noises or, in cases where the relay gets stuck, it could overheat and burn out.
 
You can watch this video to learn about the symptoms of a bad secondary air injection system: 45sADVIK TECH YouTube · Feb 14, 2023
Performance and operational issues

• Reduced power and rough idling: The pump's failure can disrupt the air-fuel ratio, leading to a hesitation or stumble during acceleration and an erratic idle. 
• Engine stalling: In some cases, the engine might stall, particularly during a cold start. 
• Check Engine Light: The engine control module (ECM) often detects the problem and turns on the check engine light, sometimes with a specific code like P0410. 

This video explains how to troubleshoot a secondary air injection system: 30sMotorservice GroupYouTube · Nov 17, 2014
Emissions and testing issues

• Failed emissions test: The secondary air system is crucial for emissions control, so a failing pump will almost certainly cause you to fail an emissions test. 
• Increased exhaust fumes: The system's inability to reduce hydrocarbons at cold start can also lead to an exhaust fume odor. 

Physical damage to the pump 

• Strange noises: You may hear scraping, whistling, or scratching sounds coming from the pump, often due to corrosion from exhaust gas or moisture ingress. 
• Overheating: If the pump's relay gets stuck in the "on" position, the pump can run continuously and overheat, which may cause visible signs of melting on the pump's housing or plug contacts.