HOT ROD Tech TV: Part 5 - Mass Airflow Sensors Video - video Dailymotion

Jet Performance Products shows its Mass Air-Flow Sensor and explains how it works.

Transcript

00:00 [Music]

00:08 It used to be a rarity seen only on performance vehicles, fuel injection.

00:15 Today you find it on all the cars and trucks built worldwide.

00:20 One of the components of a fuel injection system is a mass air sensor.

00:25 And I'm going to turn to Dan Nicholas of Jet Performance Products to tell me exactly what is a mass air sensor.

00:32 In its simplicity, it's a sensor that sits in the air intake stream between the air filter and the throttle body system

00:39 that tells the computer how much air is entering the vehicle.

00:43 Dan, we have a mass air flow sensor here. Is this a stock unit?

00:47 No, this is a jet modified mass air sensor for a Ford vehicle where we've removed all the restrictions,

00:53 increased the bore size, and modified the actual electronic sensor itself to accommodate the increased air flow.

01:00 Now how does this piece know that there's more air going through?

01:04 It has a heated element in the middle of it, which is basically an electrical wire.

01:08 As air passes across that wire, it cools it down.

01:11 It takes so much voltage to heat that wire back up that tells the computer,

01:15 "Hey, there's this much air coming through the system."

01:17 system.

01:17 [BLANK_AUDIO]