What is the P2442 on a 2010 Toyota Tundra?

P2442 Code on a 2010 Toyota Tundra
The P2442 code on a 2010 Toyota Tundra relates to the Secondary Air Injection System (SAIS). Specifically, it indicates that the Secondary Air Injection System Switching Valve for Bank #2 is stuck open. This issue is a common problem in Toyota and Lexus vehicles, and it is related to the failure of the Secondary Air Pumps and Air Switching Valves, which are known to be prone to mechanical and electrical faults.
Causes of P2442 Code:
The P2442 code is typically triggered when the Bank #2 Pressure Sensor detects pulsation of exhaust gas despite the Engine Control Module (ECM) commanding the Air Switching Valve to close. This indicates that the Switching Valve is stuck open. However, there are other circumstances and conditions that can cause the P2442 code, such as a failed secondary air injection pump, also known as the smog pump.
DIY Solutions and Cost:
Some individuals have attempted to address this issue themselves to avoid the high cost of dealer repairs, which can range from $2200 to $2500. However, it’s important to note that working on this system can be challenging, as specific bolts/nuts on the injection valve can be troublesome to remove. There are also bypass kits available as an alternative to expensive dealer repairs.
Warranty Extension:
It’s worth noting that there have been warranty extensions for this issue. For example, in some cases, Toyota has extended the warranty to cover the failed Air Injection Pump (AIP) for a certain period, such as 10 years or 150,000 miles.
In summary, the P2442 code on a 2010 Toyota Tundra indicates a problem with the Secondary Air Injection System Switching Valve for Bank #2 being stuck open. This issue is known to be common in Toyota and Lexus vehicles, and it can lead to costly repairs. However, there are DIY solutions and warranty extensions that affected owners may consider.

Can a secondary air injection pump cause a misfire?

The secondary air pump has nothing to do with an engine misfire. All it does is make the cats work better when they are cold. the rough idle can be attributed to the misfire in cyl# 4.

What is the secondary air pump on a Toyota Tundra?

2007-2011 Toyota Tundra 5.7L 6-Speed Automatic Trans. Secondary Air Injection Pump Assembly is one of the off-board purification devices that reduce exhaust emissions by using safe, high-quality and durable materials.

What are the symptoms of a secondary air injection check valve?

Common symptoms of a bad AIR check valve include:

• Illuminated Check Engine Light.
• Increased Tailpipe Emissions.
• Damage to Other Parts of the AIR System.

How do I know if my injection pump is bad?

How to Tell If Injection Pump Is Bad

1. Hard starting.
2. Reduced engine power.
3. Increased fuel consumption.
4. Visible increase in exhaust smoke.
5. Rough idling.
6. Delayed response during acceleration.
7. Misfiring.

What is the code P2442 on a Toyota Tundra?

What Does P2442 Mean? Typically, P2442 is tripped because the Bank #2 Pressure Sensor detects pulsation of exhaust gas despite ECM commanding the Air Switching Valve to close. Meaning the Switching Valve is Stuck Open.

What are the symptoms of the air injection pump on a tundra?

The Secondary Air Pump may fail, causing decreased fuel economy, drivability issues, increased emissions, and illumination of the check engine light.

Where is the secondary air injection located?

Secondary Air Injection Pump Location
The secondary air injection pump is usually placed near the engine. However, it may sometimes be hidden in the engine bay.

What is the secondary air injection system switching valve?

The secondary Air Injection (AI) system consists of an air pump, Air Switching Valve (ASV), Air Injection Control Driver (AID) and the ECM. When a cold engine is started, the AI system immediately pumps the secondary air to the exhaust port of the cylinder head to purify the exhaust emissions.

What causes secondary air injection system malfunction?

Ingress of moisture can cause damage which results in seizure of the pump. Faulty ground and voltage supply can also cause the pump to fail. Blocked or leaking lines can also cause the failure or malfunction of the control or combination valve, resulting in the failure of the secondary air system.

What happens if the injection pump goes bad?

If the pump fails to inject fuel, the engine won’t start. These components are designed to last for at least 100,000 miles or more, but they can encounter problems along the way.