Secondary air injection pump p2445 code - 2005 Toyota Tundra SR5

Question edited for clarity.
Question moved to model category.

Code P 2444

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'P1442 Toyota - Stuck Closed In Secondary Air InjectionVacuum Switching Valve Bank 1'

I'm assuming yours is the diesel.
This is a potentially VERY expensive problem.
It refers to the air injection system and the parts in it. You'll need a good mechanic to look at it and work out whether its a pump, valve or some other component.

P2445 code definition

Secondary Air Injection System Pump Stuck Off Bank 1

What the P2445 code means

The secondary air injection system is designed to pump outside air into the exhaust in order to help reduce harmful emissions. This trouble code indicates that the powertrain control module has detected a malfunction with this system on the bank 1 side of the engine.

What are the causes of the P2445 code?

The most common cause of this trouble code is a failed air injection pump. The air injection pump is designed with a check valve inside which only allows air to flow in one direction, preventing exhaust gases from escaping through the air pump and only allowing air to enter. When this check valve fails, moisture is able to get inside the air pump. During the winter months this moisture can freeze, causing the air pump to seize up and possibly break. Other possible causes of this issue would include damaged wiring or connectors associated with the air pump, blown fuses, or a broken serpentine belt

No this code is very uncommon, it is the electric powered air injection pump.

Secondary Air Induction System Switching Valve Stuck Closed.
P2441 Bank 1
P2445 Bank 2

here is what i found on p1416.



P1416 Chevrolet
P1416 Chevrolet - Secondary Air Injection System Bank 2
Possible causes
- Faulty Secondary Air Injection (AIR) pump
- Secondary Air Injection check valve bank 2
- Secondary Air Injection (AIR) pump electrical circuit fault
- Blocked Secondary Air Injection (AIR) system

When is the code detected?

The P1416 code is set when no O2 sensor voltage change is detected by the Engine Control Module (ECM).


Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)


P1416 Chevrolet Description
An Secondary Air Injection (AIR) pump is used on this vehicle to lower tail pipe emissions on start-up. The PCM supplies a ground to the AIR pump relay, which energizes the AIR pump. The Powertrain Control Module (PCM) monitors the HO2S voltages to diagnose the AIR system. During the AIR test the PCM activates the AIR pump during closed loop operation. When the AIR is activated, the PCM monitors the HO2S voltages and short term fuel trim values for both banks of the engine. If the AIR system is operating properly, the HO2S voltages should go low and the short term fuel trim should go high.

I think its in front of the right front wheel

PO418 Secondary Air Injection System Relay A Malfunction and the second code was: P2445 Sec Air Inj System Pump Stuck off (Bank 1).

That's s failure of the secondary air pump. It'll have to be changed. It's an emissions component meant to help with cold start emissions. It won't cause engine running trouble but at inspection time you'll fail for smog. Change it before then and you'll be fine.

P0491 Secondary Air Injection System (Bank 1)
This code is not fuel injection but air injection, replace the secondary air injection pump.