UEGO is a term used for the latest sensor design. Wideband O2's have been around for longer than that.

July 1987 NGK US Patent:
http://www.freepatentsonline.com/4747930.html

Feb 1988 NGK US Patent:
http://www.freepatentsonline.com/4839018.html

Horiba MEXA-110 circa 1991 that used the 1988 sensor:
http://www.jp.horiba.com/about_e/env...t/gif/4111.GIF

Awesome links dood! :)

But aint NOx different than O2? Also I dont see newhere that sez those are widebands. I aint sayin they aint good, just that I dont see no words calling ne of that stuff a wideband. Sorry Im still kinda cornfused coz I suck at chemistry lol.

They didn't use the term "wideband" back then...it was more like "wide-range." The ones from the patents were the "thick-film" type talked about in one of your links. They're not as good as todays widebands but they could measure air fuel ratio in the rich and lean ranges with decent accuracy...unlike a narrowband.

LOL!!

I dont particularly care if mazda used voodoo magic to tune the FC or the FD. The fact is, the technology is out there, and its affordable. Tuning by any other way, in my opinion, is just reckless. But again, thats my opinion. You want another one of my opinions? If you cant even afford the wideband, you have no buisness tuning.

Oh, and I see you found out when widebands were introduced.. Wasnt 2001 was it?

Yes what we call widebands nowadays was introduced in 2001.

Also there still aint no way teh 1987 turboII was tuned wit a oxygen sensor that wasnt even available till 1987 or 1988 unless mazda waz using teh experimental version of teh sensor. I dont think mazda tuned their engines reckless and they run pretty good to me. I aint never seen a stock FC or FD blow up coz it wernt tuned rite from teh factory.

I aint never said Im tuning nething. Im just tryin to learn till I can afford cool stuff just like bunnybunny iz. No need to be a hater just coz your rich and we aint. Poor peeps like to read teh internet too you know.

J-Rat I like you and I'm not rich.

But at least I can speak proper english! :O!

Jeez, how the hell do you expect anyone to take you seriously when you write like a complete moron? I feel dumber just from trying to read your posts. Drop the stupid act and go back to typing normally.

Tuning techniques used by the factory 20 years ago are totally irrelevent to you today. For starters they had a team of trained, experienced engineers, lots of measuring equipment, lots of engines to play with and lots of money. If you're inexperienced, have limited resources and only have one engine to accidently blow up (and that's you), then you need to have accurate AFR info. The technology is available to cheaply and accurately measure AFR and if you can't afford that, then you won't be able to afford dyno time either. If you can't tune it accurately you might as well stick with the stock ECU.

cardzrule exactly how many times in one thread can you completely contradict yourself? The only thing you're doing to this thread is making it longer and more pointless. There is always more than one way to do anything. The fact that the use of a Wideband makes tuning safer and easier isn't even the subject anymore, for that matter it never was. Since the thread has been hijacked by the assumption that someone is being ridiculous by not having a Wideband monitoring device planted in their car, I'll say this, all of you are being stupid. He's stupid for arguing a completely different point than anyone else, and the rest of you are stupid for continuously arguing back at him with your points, you're not even talking about the same thing. The purpose of this post has been fufilled and entirely been disregaurded.

I read this whole thing hoping someone will bring it back on point, that obviously isnt the case
SOMEONE CLOSE THIS THREAD

First off I aint never contradicted myself. I waz just asking how come you NEED a wideband wit a EMS when lots of other carz been made just fine without it. Teh only one contradicting himself is J-Rat who first says you NEED a wideband and then says its reckless to tune without it and then says theres lots of ways to tune. Its like sayin you NEED a BOV wit a turbo. Theres a diff between stuff you need and stuff thats good to have.

I aint making teh thread pointless. Every1 here is sayin you should have a wideband wit an ems, and this thread is about ems, so it aint pointless to talk about a wideband unless ur gonna say that a wideband has nothin to do with an ems. I wouldnt recommend sayin that based on my xperience lol.

What ne1 reading this thead learned so far was whats some good ems stuff to get if you got money, good info about how to tune, and hella lots of good info on widebands. Whats so bad about that?

You aint no moderator and you aint got no business telling teh moderator to close teh thread. Teh moderator made posts in this tread lots of times and does a good job watching teh threads and making good comments helping us noobs. It aint right to boss around teh moderator coz hes doin a lot of work for free.

Also it aint nice to call every1 stupid.

So you sayin that I could just buy a wideband and then Id be a uber tuner? OK I will buy one and then come to your house and tune your engine. hahahaha no way dood. If I had teh money to buy an ems then Id get it tuned by a good tuner coz there aint no fancy equipment that would make me into a tuning guru coz I suck at tuning. Also that way I dont gotta buy no wideband - BAM!

:rlaugh:

We're long from done here.