Every time I think I have the terms down I see new ones. What does wideband mean? Is it only used in reference to the o2 sensor?

Thank you

 

this http://lmgtfy.com/?q=wideband

 

What is........ a search button

 

Really? You are just assuming I didn't do that first? Could it be possible that maybe I didn't understand what it was other than a gauge that measures fuel/air ratio? Could it be that the reason I'm asking is I am thinking there is more to it than that? But I will play with you Kid. Here is what I got from the search you gave me. Which is the same thing I brought up when I did the search myself. Along with gauges for sale. And really dude, it's 2012 are we really back in the days of the commodore 64 concerned with wasting bandwidth? Wouldn't it have been easier to just give me a one or two line response kinda letting me know what it is in laymens terms and if it just means "a gauge that's measure fuel/air ratio" then that could have been said as well. I guess newcomers to your world of the Evo are expected to know everything or are they just unwelcome? And what would be the purpose of this forum if google was the final answer for everything?

In communications, wideband is a relative term used to describe a wide range of frequencies in a spectrum. A system is typically described as wideband if the message bandwidth significantly exceeds the channel's coherence bandwidth. Some communication links have such a high data rate that they are forced to use a wide bandwidth; other links may have relatively low data rates, but deliberately use a wider bandwidth than "necessary" for that data rate in order to gain other advantages; see spread spectrum.
A wideband antenna is one with approximately or exactly the same operating characteristics over a very wide passband. It is distinguished from broadband antennas, where the passband is large, but the gain and/or pattern need not stay the same over the passband.
The term Wideband Audio or (also termed HD Voice or Wideband Voice) denotes a telephone conversation using a wideband codec, which uses a greater frequency range of the audio spectrum than conventional voiceband telephone calls, resulting in a clearer sound.
According to the United States Patent and Trademark Office, WIDEBAND is a registered trademark [1] of WideBand Corporation, a USA based manufacturer of Gigabit Ethernet managed switches, adapters, and networking equipment. [2]
In some contexts wideband is distinguished from broadband in being broader. [3]

 

I am no expert but I'll take a shot. As it relates to your car, the Wideband typically refers to a type of O2 sensor. Just like your Google search explained, it's an O2 sensor that gives a wider spectrum of the air/fuel ratio. The stock narrow band O2 sensor can be understood by our ECU, however the values would be hard to make good sense of to us. So we use a wide band so we can make sense of the air/fuel ratio of the car.

 

 

sorry bout that http://lmgtfy.com/?q=automotive+wideband

 

Same search basically. But nice try. I will give you a third try if you like? Maybe something good can come out of Chicago?

 

Thanks, that brings me closer to understanding. Maybe I was reading more into it than what it was. It just gives out more data?

 

http://www.enginebasics.com/EFI%20Tu...%20Basics.html

Second link from cfdfireman1's link in post #7

 

When you start to tune these cars it is important to have a wideband o2 sensor. Being as stated it gives a more broader range of data.

 

Not to give you a hard time, but it is these one question, single answer type of topics that clutter up forums and make it hard to find usefull information. If everyone asked what a wideband is instead of reading and learning, there would be hundreds of this identical post.

Anyway, a wideband is an air/fuel ratio sensor that allows a larger range of afr data to be read. As opposed to a narrow band (what the ECU uses) which can only tlel you rich/lean/or 14.7, but can't tell you how rich or how lean.

 

Wideband - O2 / Oxygen Sensor

As opposed to a NarrowBand, which comes stock on our cars and has a horribly narrow range, the wideband has a wide range.

 

teach a man to fish?

so many people just want a damn free fish.

 

You had the opportunity to teach a man and instead you patronized him. Move along.

And to add to what's been said, "wideband" is car guy shorthand for Wideband Oxygen Sensor. AFR sensor/gauge, wideband, wideband O2 sensor are all the same thing.

And if someone says "O2 sensor" they're usually talking about the narrowband oxygen sensor(s) used to monitor catalytic converters in your exhaust stream. Narrowbands are 1V sensors where widebands are 5V sensors.