Which Codes Will This Page Cover?
- P0410 Secondary Air Injection System
- P0411 Secondary Air Injection System Incorrect Flow Detected
Who Has the Lowest Price?
Some service centers will give you an online estimate to compare. Why drive around Town!?
What Is the P0410 Code?
Symptoms
Causes
Seriousness
Can I Still Drive?
Diagnose
Difficulty of Inspecting
Get Additional Help
A P0410 code relates to the Engine Control Module (ECM) and sets when the ECM detects that the engine oxygen sensor has not seen an increase in the oxygen level in the exhaust when the air injection system is functioning. This means that the ECM didn’t receive a signal from the oxygen sensor, which monitors the oxygen content in the exhaust system. The secondary air injection system feeds fresh air into the exhaust, which helps heat the catalytic converter. The ECM uses the O2 readings as a way to verify a set amount of air is introduced during this process.
What Are the Symptoms of a P0410 Code?
You can expect several symptoms when confronted with the P0410 code. The first symptom is that your ECM will trigger the Check Engine Light on your vehicle’s dashboard. You can also witness rich running conditions in the engine in which excessive O2 pumps into the exhaust system. Rich running conditions can also cause poor fuel economy, so you may notice more fuel consumption. Nevertheless, faulty O2 sensors will trigger a variety of codes first before setting the P0410 code.
What Are Some Causes of a P0410 Code?
There are usually a few causes of the P0410 code setting in your vehicle. The first common cause is a blocked air injection system intake, which causes constrictions in the exhaust airflow. This will cause the O2 sensor to register readings out of specification and thus cause the ECM to trigger the P0410 code. Another cause of the code is faulty O2 sensors which send incorrect readings to the ECM. If the O2 sensor is damaged or the wiring around the sensor is corroded, this will also cause inaccurate readings. You may also find that the catalyst is partially clogged, resulting in increased back-pressure in the exhaust system. Also, relay contacts in the air injection pump that are not making proper contact will cause the P0410 to set.
How Serious Is the P0410 Code?
The P0410 isn’t a critical code as it primarily affects your vehicle’s ability to pass emissions testing. The air injection pump system works to help lower the emissions coming out of the exhaust, so if it isn’t working correctly, this will cause your vehicle to fail an emissions test. You also won’t pass emissions tests with the Check Engine Light on. Nevertheless, it would be best to act accordingly when presented with the code to prevent further issues from developing.
Can I Still Drive with a P0410 Code?
As we’ve stated, the air injection system works to help lower exhaust emissions, so it shouldn’t inhibit your vehicle’s routine and safe operation. With that said, you should take caution driving your car for extended periods if it’s unable to pass emissions tests. At the very least, you can run the risk of being cited for faulty vehicle equipment by the police. Other than that, the P0410 code by itself won’t keep you from driving your vehicle safely.
How Easy Is It to Diagnose a P0410 Code?
Diagnosing the P0410 code can take several steps and is best left to qualified technicians with prior experience working on these sorts of issues. A technician’s first step will be documenting any freeze-frame data to verify the problem. They will then clear all codes and retest the vehicle to ensure that the air injection system is operating correctly. Any other codes that come up during this test will need addressing first before continuing to the P0410 issue.
The technician will then monitor the O2 sensor in real-time with a scanner to verify that the sensor reacts when the air injection pump activates. If the sensor is working correctly, the sensor should reach a level below 150 millivolts within three seconds of the pump activating. If it takes longer than three seconds, then you might be dealing with a faulty O2 sensor. If they confirm that the sensors aren’t the root cause of the P0410 issue, they will check the air injection relay for power if the pump isn’t turning on. This will tell the technician whether there is a faulty power connection or a failed air injection pump that needs replacing. They will finally use a multimeter to verify that the air injection pump is reading the proper resistance between power and ground pins. Issues here would indicate that a faulty pump control is an issue or that you’re dealing with a failed pump altogether. Visit our car repair guide for more information on these issues.
How Difficult Is It to Inspect a P0410 Code?
The first step in inspecting the P0410 code is checking the fuse for the air injection pump. If the fuse is blown, it’ll need replacing and a test drive. Often, the cause of this fuse blowing is a failed air injection pump, so if the fuel blows again, the technician will replace the air injection pump and fuse. They will also clean out the necessary hoses and replace the one-way check valve. If the fuse isn’t blown, the technician will check the air injection pump relay to assess its function. Again, they will replace the relay if it fails and test drive the vehicle again to resolve the problem. Finally, if the relay passes the test, they will replace the air pump.
Need Additional Help with Your P0410 Code?
By following our tips in this guide, you will spot the marks of a P0410 code issue and take the necessary steps to ensure that your vehicle is running smoothly. Keeping your air injection system operating efficiently will keep your car healthy and on the road for longer.
P0410 Q&A
Common Error Codes
Browse All OBD-II Codes
Get Recall Alerts
All recalls are considered serious. Stay safe. Take care of any recalls ASAP. The good news? Recall repairs are free when performed at a local dealer.