What is Toyota air injection pump?

Toyota Air Injection Pump
The air injection pump in Toyota vehicles is part of the secondary air injection system. This system helps reduce emissions by injecting additional air into the exhaust system to help burn any unburned fuel. The air injection pump is responsible for pumping the secondary air into the exhaust manifold under certain conditions, such as during engine warm-up.
The secondary air injection system is critical for vehicles to meet government emissions standards. It helps intercept and burn any unburned fuel in the exhaust system, thereby reducing harmful emissions. The system is activated by the engine control unit (ECU) based on various factors, such as engine temperature and throttle position.
It’s worth noting that there have been reports of air injection pump failures in certain Toyota models, such as the Tundra. These failures can result in the check engine light coming on and may require repairs or replacement of the air injection pump. If you are experiencing issues with your air injection pump, it is recommended to consult with a qualified mechanic or contact a Toyota dealership for assistance.
Please note that the information provided is based on the search results and may not cover all possible aspects of the Toyota air injection pump.

What are the symptoms of a bad air injection pump?

The failed secondary air injection pump can cause fluctuation in power. For instance, in one minute your vehicle is performing well and in the other minute, you may face a drop in revs. Thus, you need to replace the pump to avoid continuous engine stalls and ensure a smooth drive.

What happens when an injector pump goes out?

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.

How often does an injector pump need to be replaced?

every 50-100,000 miles
Replacement Schedule for Fuel Injectors
The Injectors ought to be replaced every 50-100,000 miles, in normal conditions. That is according to some published studies, but the true replacement interval may be very different, based on several factors.

How long do air injection pumps last?

Lately I’ve been doing a ton of reading of how long our pumps are supposed to last. DFIS says you’re lucky if you get more than 150k miles out of them, however I know some members on here are pushing 400-500k easily on then no problems.

What does an air injection pump do?

Secondary air injection (commonly known as air injection) is a vehicle emissions control strategy introduced in 1966, wherein fresh air is injected into the exhaust stream to allow for a fuller secondary combustion of exhaust gases.

How much does it cost to replace air injection pump?

The average cost for an Air Pump Replacement is between $492 and $597. Labor costs are estimated between $76 and $95 while parts are priced between $416 and $502. This range does not include taxes and fees, and does not factor in your unique location.

What is the purpose of the air injection pump on a Toyota Tundra?

Thus, the purpose of the secondary air injection system is reducing hydrocarbon and carbon monoxide emissions that result from cold start conditions.

What is the common problem in injector pump?

Dirty fuel may cause problems with the fuel injection pump, building residue throughout the entire system. Also, using low-quality fuel may worsen the situation, leading to sputtering acceleration problems, like increasing the speed.

Why do injection pumps fail?

Dirty fuel
If you have enough debris inside the injector pump, it could start to get clogged. The area most prone to getting clogged is the spray tip, which is the section where the fuel exits the injector and then goes into the combustion chamber.

Is it bad to drive with that bad air injection pump?

A problem with your air pump can be a serious issue. Because your air pump is part of your car’s emission control system, your ability to keep your vehicle smog-legal and running smoothly can be affected.