I FAIL THE EMISSIONS CODE# P0410- SECONDARY AIR INJECTION SYS MALF! NEED HELP WITH UNDERSTANDING WHAT THIS READ FROM A MECHANIC WORDS? TO A LIL SMALL MECHANIC LIKE ME. LOL, AND WHERE IS IT ON MY 2001 CADILLAC SEVILLE STS? OH YA, THE TEST RESULTS READ > RPM-655 DTC1- PO101, KOEO-PASS DTC2- P0102, READNESS-PASS DTC3-P0385, MIL CMD-FAIL DTC4-P0410, CODES READ-07 DTC5-P0412, DLC-PASS,FUEL CAP TEST PASS, ''OVERALL TEST RESULT''

Secondary air injection system P0410
First check the fuses and relays for the secondary air
Pump, if blown, replace them...otherwise, replace the pump..

P0410 code is for secondary AIR injection system. this injects air into the exhaust system to lower emissions, its pointless and wont effect your vehicles performance. It doesn't make the car any more efficient it just "dilutes" the exhaust emissions

take it to a dealer warranty should cover the repair ( emission sys )

Hi there:
This code is for the Air Injection Reaction (AIR) Pump they often will get water inside of them and the pump will fail. In this case the pump will need to be replaced.



DTC P0410 - Secondary Air Injection System Malfunction

The P0410 code refers to the emissions system. The AIR pump puts air to the exhaust to lower emissions. It takes in outside air and pumps it through two one-way check valves into each bank of the exhaust.


About 90% of the time that this code is set, the one-way check valves have worn out or failed and allow water (which occurs naturally in the exhaust) back into the pump. In any cold climate, especially in climates with higher humidity, this water may be more excessive. The water partially fills the AIR pump, it can then freeze. When the PCM commands the pump on, if the pump is frozen it cannot turn, thus overloading the circuit and "popping" the fuse.

Possibly symptoms include:
MIL illumination obviously
Hesitation on acceleration
Noise from a bad/stuck AIR pump

A code P0410 may mean that one or more of the following has happened:
Water may have collected in the AIR pump or the vent solenoid and frozen or corroded the pump
Blown AIR pump fuse due to freezing up


Possible Solutions:
Note: There is a technical service bulletin (TSB) regarding this code for a number of GM models. The TSB calls for the replacement of the AIR pump and the installation of a new secondary injection hose. The TSB can be found on this ACDelco site.

Additionally, if you simply replace the AIR pump the problem may return again (and again). If you replace the pump, also clean out the hoses and replace the one-way check valve. If this is on a GM model that the TSB applies to, follow those instructions in the link above. In a few cases, people have put a small hole in the rubber cover on the pump which allows any water to drain out.

Also, please note that this may be covered under the emissions warranty on the vehicle. If your vehicle is out of bumper-to-bumper warranty, check if the emissions warranty is still valid!

Replace the AIR pump AND one-way check valve
Test and clean the AIR pump AND test and replace the one-way air check valve
Replace the AIR pump inlet hose
Replace the AIR pump fuse (found under the hood)


Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Hello,

P0491 is a Secondary Air System fault Bank 1.

Bank 1 refers to the passenger side off the engine. The combination valve for secondary air injection did not preform as it should & set a fault. The valve is located under the plastic engine cover at the rear of the right cylinder head.

There is a plastic tube from the air pump to the valve that breaks, the valve sometimes fails, there is a vacuum hose that opens the valve that also sometimes fails & rarely the Air Injection Vacuum Control Solenoid Valve fails. The plastic tube unpluged/cracked or failed valve are the 2 most common failures.

If it's a vac leak it's in the small hose from the solenoid valve to the combination valve. The super charger may affect the vacuum, but I would expect to see more codes if it was really messing with things. The air injection system only runs for about 1.5 minutes on cold starts. If the plastic tube is broken you will hear what sound like a small exhaust leak.

P0410

What does that mean?

The P0410 code refers to the emissions system. The AIR pump puts air to the exhaust to lower emissions. It takes in outside air and pumps it through two one-way check valves into each bank of the exhaust.

About 90% of the time that this code is set, the one-way check valves have worn out or failed and allow water (which occurs naturally in the exhaust) back into the pump. In any cold climate, especially in climates with higher humidity, this water may be more excessive. The water partially fills the AIR pump, it can then freeze. When the PCM commands the pump on, if the pump is frozen it cannot turn, thus overloading the circuit and "popping" the fuse.
Symptoms

Possibly symptoms include:

* MIL illumination obviously
* Hesitation on acceleration
* Noise from a bad/stuck AIR pump

Causes

A code P0410 may mean that one or more of the following has happened:

* Water may have collected in the AIR pump or the vent solenoid and frozen or corroded the pump
* Blown AIR pump fuse due to freezing up

Possible Solutions

Note: There is a technical service bulletin (TSB) regarding this code for a number of GM models. The TSB calls for the replacement of the AIR pump and the installation of a new secondary injection hose.

Additionally, if you simply replace the AIR pump the problem may return again (and again). If you replace the pump, also clean out the hoses and replace the one-way check valve. In a few cases, people have put a small hole in the rubber cover on the pump which allows any water to drain out.

Also, please note that this may be covered under the emissions warranty on the vehicle. If your vehicle is out of bumper-to-bumper warranty, check if the emissions warranty is still valid!

* Replace the AIR pump AND one-way check valve
* Test and clean the AIR pump AND test and replace the one-way air check valve
* Replace the AIR pump inlet hose
* Replace the AIR pump fuse (found under the hood)

The above are the interpretation of the codes.

Let me know if you need further assistance.

Regards.

P0420 - Catalyst System Low Efficiency
P0410 - Secondary Air Injection (AIR) System
P0305 - Cylinder 5 Misfire Detected
P0449 - Evaporative Emission (EVAP) Vent Solenoid Control Circuit

CEL light/code P0410, secondary air system fault.
DTC P0410 - Secondary Air Injection System

Suspect -
Relay/fuse (box B) loc 3 ,15amps
Pump $434(new) / $243 (Remanufactured) / $95 (used,Ebay)
solenoid $73
check valve $18
http://www.autopartswarehouse.com

A new pump, or simulator!

What signals the ECU, if the seconary Air Injection system isn't working?
H20 sensors, if running rich > Xtime throw code!
The pump only runs when the engine is cold, so the air & rich fuel mix is burnt in the exhaust manifold, so there's less Emission.

The P0410 code refers to the emissions system. The AIR pump puts air to the exhaust to lower emissions. It takes in outside air and pumps it through two one-way check valves into each bank of the exhaust ( P0410 - Secondary Air Injection System Malfunction )

About 90% of the time that this code is set, the one-way check valves have worn out or failed and allow water (which occurs naturally in the exhaust) back into the pump. In any cold climate, especially in climates with higher humidity, this water may be more excessive. The water partially fills the AIR pump, it can then freeze. When the PCM commands the pump on, if the pump is frozen it cannot turn, thus overloading the circuit and "popping" the fuse.

Possibly symptoms include:
* MIL illumination obviously
* Hesitation on acceleration
* Noise from a bad/stuck AIR pump

Causes: A code P0410 may mean that one or more of the following has happened:
* Water may have collected in the AIR pump or the vent solenoid and frozen or corroded the pump
* Blown AIR pump fuse due to freezing up

Possible Solutions:
Note: There is a technical service bulletin (TSB) regarding this code for a number of GM models. The TSB calls for the replacement of the AIR pump and the installation of a new secondary injection hose. The TSB can be found on this ACDelco site.

Additionally, if you simply replace the AIR pump the problem may return again (and again). If you replace the pump, also clean out the hoses and replace the one-way check valve. If this is on a GM model that the TSB applies to, follow those instructions in the link above. In a few cases, people have put a small hole in the rubber cover on the pump which allows any water to drain out.

Also, please note that this may be covered under the emissions warranty on the vehicle. If your vehicle is out of bumper-to-bumper warranty, check if the emissions warranty is still valid!
* Replace the AIR pump AND one-way check valve
* Test and clean the AIR pump AND test and replace the one-way air check valve
* Replace the AIR pump inlet hose
* Replace the AIR pump fuse (found under the hood)


Hope this helps (remember comment and to rate this answer).

that code indicates a problem w/ the air injection system, a part of the emissions system. you should check the air pump, solenoid, check valves and vacuum hoses of that system. the emissions sticker under the hood should give you a detailed enough diagram of where the components are