OEM Air Intake Parts

Toyota Air Intakes: Buyer's Guide and FAQ

You drive a Toyota vehicle, so you probably already know just how important an air intake is to your engine running right. If you're less familiar, you're in luck; we've made getting to know it a lot easier. Here's everything you need to know, including the symptoms of a bad air intake.

What Does an Air Intake Do?

Let's take Toyota Corolla for an example. Its intake draws air into its engine's manifold, right through to the cylinders, in a process called "air induction." At the same time, the injectors in the fuel system spray gas through the intake valves; the air mixes with the gas in just the right ratio, the spark plugs ignite the mix, it burns, and the engine can produce the power it runs on.

How Does an Air Intake Work?

First, the air filter in the Corolla captures airborne contaminants, before they can get into the engine. Then, a mass airflow sensor, an air metering system, and oxygen sensors work together to regulate the air levels. Together, these parts not only coordinate induction and exhaust but also feed info about both back to an engine control unit (ECU). There's one type of intake that works slightly differently, though: a cold air intake.

How Do Cold Air Intakes Work?

They often simply relocate the engine air filter -- in the case of a Corolla, to just outside the engine compartment. You can usually find one, if your model already has one, above one of its wheel wells or near a fender. This placement allows taking in cooler air. The result: since cooler means denser and therefore higher-quality, a slight improvement in engine power output. (This is a boon for sports cars, for instance -- say, Toyota GR Supra.)

What are the Signs of a Bad or Failing Air Intake?

You may see:

Fast revs and weird idle speeds suggest air intake failure. See any of them, and the best thing to do is to plug in a code reader or advanced scan tool and run a thorough inspection. If error codes indicate you need a new induction system, replace it ASAP (or get it taken care of at a Toyota dealer).

Shop OEM Air Intakes for Toyota from Irving TX

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