jester1341

anyone have an AEM eugo wideband yet?? is this a good upgrade??

'87 turboII
i have;
-S5 turbo and manifold
-A`PEXi S-AFCII[untuned]
-K&N FIPK
-racing beat turbo back dual exhaust
-DIY BOV


one reason i want this is to be able to acuratlly tune my S-AFCII........mainly to pass emissions.....hehe

also keeping a good eye on a/f isnt a bad idea

NZConvertible

Don't confuse tuning tools and tuning knowledge. If you don't know what you're doing you can quickly and easily blow your engine. Unless you're confident in your tuning skills, take it to a pro.

jester1341

this is a good point, and i would do this with supervision, but this would techniclly allow me to lean out my fuel to a normal point right?

NZConvertible

There's no such thing as a "normal" point, but with experienced supervision you can lean the mixtures out to a point that's still safe, and get more power and decreased fuel consumption.

SwooshMan

From what i've read on the forum, the AEM wideband is flawed as far as i'm concerned. It only reads down to 11.1 AFR. If anybody has it and I'm wrong please tell me b/c I really like the display. I think it reads lower in Lambda(sp?).

jester1341

as of right now im not concearned with making max power, what i want is to pass emissions. hopefully before i have to go again in two years it will be "off the street" but i have untill july to pass and i know i failed because im too rich.......id rather not try to fix a problem myself i dont fully know how to

could the local Mazda shop tune me to a safe A/F and recalibrate my idle??? thats what i really need and then ill just buy a nice clutch instead of a gauge that could potentially cause my unexperienced hands to blow my rotors out!!....hehe[not really a funny thought]

last time i was there asking about work[PD fire] they told me they had no rotary techs and that i could only get a remanufactured engine. is this really a good idea?? starting another line of rotarys and having no one to work on them???

P.S. im not trying to hack the thread i still wanna know what everyone thinks about the AEM eugo since its a pretty cheap wideband from a pretty reputable brand.

justturb2

the lm1 wideband is better. you can get it at horsepower freaks.com but the gauge is not as nice.

gsracer

I don't like the AEM unit for the cost. It's expensive, and there are cheaper, proven widebands that'll work for much cheaper. Eg: lm1, plx etc...


Tuning a safc is not very complex...

NZConvertible

You've totally missed my point. Tuning with an S-AFC is not much harder than operating a calculator. Tuning an engine is a totally different skill, and the two should not be confused. It's just as easy for an inexperienced home tuner to blow an engine with an S-AFC as it is with a Haltech.

gsracer

An safc is virtually dummy proof. It has an easy to operate interface, and is a simple 2d fuel controller. I agree, it's just as easy to blow an engine with a haltech or an safc if the user has no idea what he is doing, but everyone has to start at some point. No one is born with a God given natural tuning ability.

With a wideband, some common sense, and an hour or two I believe nearly anyone can achieve the a/f numbers they want.

pip

Is it possible to run a wideband sensor/controller without a standalone ems? Do you just splice the harness into the wideband sensor?

gsracer

Yes, if you're on the stock ecu you could just leave the stock o2 sensor alone. You'll want the wideband to be further down the exhuast stream.

mr_vaughn

iTrader: (1)

i am going with the lm-1 cause it can output a signal voltage of what you want from 0.01v to 5V
os i an going to configure it form my autometer gauge and my Stock ECU.

jester1341

i thinik ill look at the lm-1, how accurate is it??

pip

Ahh so if you were to run a wb and a nb at the same time you would need a second bung in the exhaust, it all makes lots of sense now.

turboii87rx7

i didnt want to post a new topic, so im bringing this one back to life..... does anyone have a link to where i can use a wb02 (and my stock o2) yet have hte wb hooked up to my autometer gauge???
thanks

KNONFS

iTrader: (14)

PLX Devices WB is the only one that I know of...
http://www.plxdevices.com/NB_WB_GaugeConv.htm

turboii87rx7

can it be used with an lm-1??? bc the lm-1 is def. what im looking for.
thanks again

mr_vaughn

iTrader: (1)

the Lm-1 has 2 outout signals that you can adjust the variables between 0V and 5V

1 will go to my stock ECU and the other will go to my autometer AFR gauge

both @ different ratio to the lambada/AFR.

The 1 going to the ECU will have a straight plot graph compared to the narrow band sensor graph

check this thread
https://www.rx7club.com/showthread.p...d+sensor+graph

mr_vaughn

iTrader: (1)

here is a graph of a narrow band in black and the output you can PROGRAM from the LM-1

jreynish

iTrader: (2)

I bought the AEM UEGO WBO2 sensor, I will tell you how well it works after I use it to do some tunning!

silverrotor

iTrader: (1)

I'm this close (this Is where you see my 2 fingers barely touching each other) to purchasing this unit for a great deal. I posted an Impression thread on AEM's UEGO Guage type WB last week, awhile absent mindly not searching.

I have been searching under AEM's Forums where you'll find heaps of Info.

The instructions show that if your datalogging it will go as low as 10.0 A/F. The gauge does have a 0-5v output on it.