I'm considerind building/buying a DIY wideband when I came across this air fuel meter - seems close to what I am looking for in that it reads from a seperate and more sensitive o2 sensor.


http://www.suprastore.com/supra/gredairfuelk.html

Has anyone tried or read anything on this unit?

 

Your o2's are only acurate at 14.7-1 afr, so the air fuel meter is juat a light show. The diy wide band is acurate, it can be used to tune with.

 

Thanks - but i know that - this gauge uses a 3rd o2 sensor just as the DIY wideband does.

just wondering if anyone has tried it.

 

I hope their claims of performance on the "higher band" O2 sensor (what the hell is a "higher band") are more accurate than their information on the price of the MoTeC wideband.... it is NOT $4,000...... that's about the cost of a complete engine management computer, with a wide-band option. The stand alone TRUE wide-band MoTeC Professional Lambda Meter is $1,000..... not cheap, but also not $4,000.

MOTEC PROF. LAMBDA METER

 

I agree the ad is a bit misleading - I also like the reference to a "near wideband" how close is near?

However, to my simple way of thinking - what is required is the proper sensor and a gauge that will read it - I'm not quite sure why the DIY is so complex (I must be missing something)

 

With the concept that the cats cause the wideband to read leaner AFR there has to be a simple way to check the AFR in front of the cats that doesn't cost a bundle.

 

I was just at a dyno session where a FJO wideband dealer was helping with some Supra tuning. His webiste is"

www.widebando2.com

We spoke about the Greddy set up and he said it's not even close!!! He could very well be biased but said he tried it before and it's more like a high priced STOCK type O2 sensor. Not a 5 wire/heated WIDE BAND O2. I have not checked out the Greddy set up myself, I've always leaned towards true wide band myself. The FJO set up is $750.00 for the basic package but add some options and it tops $1000.00. Been hoping the F.A.S.T. stuff gets a little cheaper and go with the wideband offering for that. Good luck and take care.

 

Install an extra O2 bung in each branch of the exhuast. I run open loop, but I still have the bungs, and they are extremely useful for tuning. When not tuning, I put OEM sensors in and read them via the stock PCM. Not a lot of useful info, but handy for "normal driving"..... keeping things in a decent MPG and emissions range.