Exception in rendering!

Message: window is not defined

ReferenceError: window is not defined
    at new c (/tmp/execjs20161209-102681-7mmvvcjs:136:3912)
    at m.mountComponent (/tmp/execjs20161209-102681-7mmvvcjs:47:15602)
    at /tmp/execjs20161209-102681-7mmvvcjs:49:31860
    at a.r.perform (/tmp/execjs20161209-102681-7mmvvcjs:47:12503)
    at Object.a [as renderToString] (/tmp/execjs20161209-102681-7mmvvcjs:49:31821)
    at r (/tmp/execjs20161209-102681-7mmvvcjs:50:21164)
    at Object.S.ReactOnRails.serverRenderReactComponent (/tmp/execjs20161209-102681-7mmvvcjs:32:6073)
    at eval (eval at <anonymous> (/tmp/execjs20161209-102681-7mmvvcjs:173:8), <anonymous>:10:23)
    at eval (eval at <anonymous> (/tmp/execjs20161209-102681-7mmvvcjs:173:8), <anonymous>:17:3)
    at /tmp/execjs20161209-102681-7mmvvcjs:173:8

P2446 OBD-II Trouble Code: Secondary Air Injection System Pump Stuck on Bank 2

check engine light

P2446 code definition

A P2446 indicates a problem has been detected in the vehicle's pressure sensor circuit or secondary air injection pump.

What the P2446 code means

A P2446 code refers to a potential issue with the secondary air injection pump. This air injection pump is used to reduce car emissions. In the instance of this code, something is negatively affecting the pump's flow and pressure ratings. In rarer cases, the problem may lie with the pressure sensor itself.

What causes the P2446 code?

In many cases, a P2446 is caused by water from the exhaust damaging the secondary air pump in colder weather. If the pump's pressure and flow varies by more than 10% from the manufacturer's prescribed setting, the code will be logged in the vehicle's computer.

What are the symptoms of the P2446 code?

Drivability issues will arise from a lack of proper engine ventilation. This may result in poorer engine responsiveness or even stalling. Abnormal noise from the secondary air pump is often the most prominent symptom behind a P2446 code.

How does a mechanic diagnose the P2446 code?

An OBD-II code reader will pick up the P2446 code when it is inputted into the vehicle's computer. A P2446 problem may be diagnosed by running and checking the secondary air pump to see if it's working properly. If the pump's pressure and flow is at least 10% below the default factory target setting, it will be sufficient cause to diagnose it as a P2446 issue.

Common mistakes when diagnosing the P2446 code

The check valves and water drain should be inspected and repaired as needed before replacing the secondary air injection pump itself. In addition, it may be the pressure sensor itself that is misreading an otherwise stable air injection pump. If you have received a P2446 code but haven't experienced any practical symptoms of a problem, you should consider the pressure sensor as a potential issue.

How serious is the P2446 code?

Repeated failure of the secondary air pump will compromise the vehicle's engine if left unchecked. Although the symptoms are usually mild at first, the problem should be addressed promptly.

What repairs can fix the P2446 code?

Wiring and connectors relating to the secondary air pump and pressure sensor circuit should be inspected and repaired as required. One-way check valves and water drainage should be replaced or repaired as needed before considering larger repairs. In cases where the secondary air pump has been significantly damaged, it may need to be replaced with a new copy. Afterwards, retest the car each time you make a repair to confirm the issue has been solved.

Additional comments for consideration regarding the P2446 code

"Bank 2" refers to the bank of the engine opposite from the bank that houses the number one cylinder. Your vehicle's service manual should indicate which engine bank is which.

Need help with a P2446 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

Post a question and get free advice from our certified mechanics.

ASK A QUESTION

More related articles

P0222 OBD-II Trouble Code: Throttle/Pedal Position Switch/Sensor B Circuit Low Input
P0222 code definition Throttle/Pedal Position Switch/Sensor B Circuit Low Input What the P0222 code means The manufacturer specifies a range of acceptable voltage to be produced from the throttle position...
The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Shutterstock.com Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....
Veteran and Military Driver Laws and Benefits in New Mexico
The state of New Mexico offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch...


Related questions

Q: Powertrain warning lamp

In this case you will need to have the computer scanned to retrieve the codes that are stored. The codes will indicate the exact problem areas. Have the trouble codes and warning light diagnosed by a certified technician, such as...

Q: Check Engine light on with specific codes.

I would like to start off by saying that the numbers you gave only contain two trouble codes, which are Codes P0405 and P0455. The 01/02 is code 1 of 2 and 02/02 is code 2 of 2. The KWP...

Q: Egr solenoid

Hi there. Once these parts are replaced you need to do the test procedure with the same plug otherwise the light will remain on. If you did the reset then the circuit will need to be tested. It can also...