P0410 Code: Meaning, Causes, Symptoms, & Fixing

A secondary air injection system uses to pump the fresh air into the exhaust to warm the catalytic converter. This system helps to minimize the emission of exhaust gases. This technology was introduced in 1966. When your powertrain control module (PCM) detects an issue with the secondary air injection system, it triggers the P0410 code. This article explains the P0410 code symptoms, its causes, and how to fix it.

P0410 Code Definition

P0410 code stands for “Secondary Air Injection System Malfunction”.

What Does the P0410 Code Mean?

The P0410 error code indicates that the powertrain control module (PCM) detected that the O2 sensor has not detected an increase in the O2 level in the exhaust when the secondary air injection system is working

P0410 code

A secondary air injection system uses to pump the fresh air into the exhaust to warm the catalytic converter and minimize the emission of the exhaust gases.

The secondary air injection system contains special hoses, a non-return valve, and an air pump, all of which must work according to the requirements to achieve maximum operational efficiency. The air pump is used to inject O2 into the exhaust, which helps to lower the emission of the exhaust gases.

The P0410 code is triggered when the car’s PCM is not receiving a signal from the O2 sensor, which measures the O2 levels in the exhaust system. The PCM of your vehicle utilizes the oxygen sensor information to confirm that a certain amount of oxygen has been transferred during the process.

Symptoms of P0410 Code

  • Your engine may run too rich if unnecessary air is introduced into the exhaust
  • Check engine light is flashing
  • Poor acceleration
  • Acceleration issues
  • Hard to start the vehicle’s engine
  • Extreme noise from the air pump
  • Emission test failure
  • Poor fuel economy

Read More: Causes of Check Engine Light Flashing

Causes of P0410 Code

  • Bad air pump
  • Faulty air pump relay
  • Damaged or blown air injection fuse
  • Faulty air pump check valve
  • A clogged air injection system

How to diagnose the P0410 Code?

Use the following tools to diagnose the P0410 code:

  • Auto Repair Manual
  • OBD-II Scanner
  • Multimeter
  • Electrical Contact Cleaner
  • Basic Hand Tools

Follow the below-given steps to diagnose the P0410 code:

  • First of all, scan all the stored codes in the PCM memory using an OBD-II scanner.
  • Use the freeze data for further examination.
  • Now clear the stored codes and perform a test driver. If the P0410 code returns, then perform the following steps.
  • Retest your air injection system.
  • Inspect the oxygen sensors. If any of your sensors are damaged, replace them.
  • Inspect the wiring and electrical connections to the air injection system.
  • Use a scanner to check the working of the O2 sensor PID; if the sensor reacts when the air injection pump is turned on, the sensor should go below 150 mv within 3 seconds.
  • Inspect the fuse of the air injection pump. Replace the fuse if it is damaged or blown.
  • Inspect the air injection pump relay.
  • Monitor resistance from the air injection pump.
  • Inspect the PCM.

Common P0410 Code Diagnostic Mistakes

  • Not checking the codes stored in the system memory.
  • Replacing the air pump without inspecting the air pump fuse.
  • Replacing the air pump without checking the air injection system wiring and connectors.
  • Not checking the air injection pump relay for burnt wire connections before replacing a bad air injection pump.

What repairs can fix the P0410 code?

  • Replacing the bad secondary air injection system
  • Replacing the air pump
  •  Replacing the blown fuse of the air pump
  • Replacing the faulty relay of the air pump
  • Replacing the bad check valve
  • Replacing the bad O2 sensor
  • Cleaning the clogged intake filter of the air injection pump

P0410 Code Repair Cost

The repair cost of the trouble code P0410 varies according to the vehicle model, your living area, and labor cost. To fix this code, you need one or more of the below-given repairs:

PartsRepair Cost
Injection pump fuse replacement$10 to $20
Injection pump relay replacement$40 to $110
Air pump installation$540 to $710

FAQ Section

Can I drive with a P0410 Code?

Yes, you can drive with a p0410 code. However, you can’t pass an emission test with this code. This code indicates an issue with the air injection system. The air injection system assists in reducing the emissions of exhaust gases. Exhaust gases are very dangerous to the atmosphere. However, driving with the P0410 code for an extended period may cause the engine’s internal parts to fail. Therefore, you should fix this code as soon as possible.

What are the causes of bad secondary air injection?

  • Bad air pump
  • Bad control valve
  • Damaged hoses and lines
  • Bad sensor
  • Bad control circuit

How serious is the P0410 Code?

The diagnostic trouble code (DTC) P0410 is not a critical code because it mainly affects the ability of your car to pass emissions tests. This code indicates a problem with the air injection pump system. The air injection pump system helps to reduce the emissions of the exhaust. With a bad air injection pump system, your vehicle can’t pass the emissions test. In some countries, you can’t drive your vehicle without passing the emission test.

How to Inspect a P0410 Code?

  • Locate the air injection pump fuse. Inspect the fuse. If it blows, replace it and perform a test drive.
  • Check the relay of the air injection pump. Similarly, if a relay fails, replace it and retest the vehicle to resolve the issue.
  • Clean the required hoses and replace the check valve if needed.
  • If everything is okay, your pump may be bad. You should replace your injection pump.

What happens if the secondary air injection pump fails?

When the secondary air injection pump goes bad, it produces one of the below-given symptoms:

  • A reduction in the engine power
  • Engine stalling
  • Idling issues
  • Failed emission test
  • Check engine light illumination
  • Bad catalytic converter

What are the Symptoms of P0410 Mercedes?

  • Check engine light is flashing
  • Poor acceleration
  • Acceleration issues
  • Hard to start the vehicle’s engine
  • Extreme noise from the air pump
  • Emission test failure
  • Poor fuel economy
Read More

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