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

Our certified mechanics come to you · Get a fair and transparent estimate upfront

Red-stars EXCELLENT RATING ON

Cost of diagnosing the P2446 code

P2446 is a diagnostic trouble code (DTC) for "Secondary Air Injection System Pump Stuck on Bank 2". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$20.00
Toyota$20.00
BMW$20.00
SCHEDULE P2446 DIAGNOSTIC Get a fair and transparent estimate upfront

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.

P2446
trouble codes
Check Engine Light

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P2446 code.

SCHEDULE P2446 DIAGNOSTIC
Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating

(6,114)

Rating Summary
5,655
221
51
35
152
5,655
221
51
35
152

Kevin

24 years of experience
388 reviews
Kevin
24 years of experience
Chevrolet Tracker - Check Engine Light is on - Stone Mountain, Georgia
Kevin was pretty cool! He explained things to me in a way I could understand and was able to offer me some good options to fix my car problems! Very professional and knew his stuff! Excellent experience

JOHNNY

33 years of experience
63 reviews
JOHNNY
33 years of experience
Toyota Camry - Check Engine Light is on - Carmichael, California
Johnny was early, friendly, and thorough! He explained things to me about my car that I had no idea about before! I booked him for a diagnostic appointment and I’m definitely requesting him for a follow-up!

Benji

22 years of experience
184 reviews
Benji
22 years of experience
Jaguar XK - Check Engine Light is on - Phoenix, Arizona
Will absolutely recommend Benjie to all my friends, thorough and knowledgeable. Will have him back fit all future car repairs!

Marco

29 years of experience
124 reviews
Marco
29 years of experience
Kia Soul - Check Engine Light is on - Riverside, California
Marco was great. Cam on time, and explained everything he did. Also gave good recommendation for fixing as the problem has a Kia recall.


More related articles

P2099 OBD-II Trouble Code: Post Catalyst Fuel Trim System Too Rich Bank 2
P2099 code definition Post catalyst fuel trim system too rich bank 2 What the P2099 code means This trouble code indicates that...
P0609 OBD-II Trouble Code: Control Module VSS Output "B" Malfunction
P0609 code means there is an malfunction in the vehicle speed sensor output from the PCM often due too corroded wires or an defective control module.
P0084 OBD-II Trouble Code: Exhaust Valve Control Solenoid Circuit (Bank 2)
P0084 P0084 trouble code definition P0084 is a general code indicating an issue with the exhaust valve control circuit on the bank 2 side of the engine. This code is similar to P0085 and P0086. The engine also has a...

Related questions

Service engine light is on.

I would ask for help from a mechanic with a scan tool to check what code is being set in your computer. Consider one of the mechanics from YourMechanic to come out with their equipment to diagnose why your car...

Engine light keeps turning on, 2006 Dodge Caravan

It sounds to me like the dealership simply tightened the gas cap and didn't charge you for it nor recorded the transaction. Not to worry though. I don't believe tightening the gas cap would be the proper repair. What you...

Car does not start remotely and Check Engine Light is on

Hi there. Check to see what Engine Light code is stored first to determine what needs to be repaired. There are 21 different codes that are the basic symptoms for a vehicle with not starting and loss of power that...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com