Nissan Maxima: air fuel ratio meter - any1 know about the o2 and airflow sensors

bigm wrote:
 

All you have to tap into is the O2 sensor wire -not- the AF meter. It's a
simple one wire hook up, plus power and ground.
 

You hook into the white wire, the other are for the heater.
 

Yep. In reality it depends on the car where it spends most of it's time. I
use these on old Zcars and I read the .5V to .85V range to tune them. Also
they aren't very accurate in the rich zone, people use the wide band
sensors for that but they cost $$$$$$

 

Correct.
 

It's the white wire and that is the signal it sends.

 

You won't hook anything up to it.



--

Steve

http://www.atlantaracing.com

Thanks heaps for your help - im now building the meter... now i know how to
hook up the o2 sensor - however I have now discovered that the two - one
for each cylinder bank im guessing - which is abit annoying in a way but
your right - they arnt to accurate anyway - im more just installing it so
i know what the engine is up to rather then using it for tuning or
anything. However with this meter - it does seem to require to be hooked
up to the AF sensor - so the question still remains - is it a vane type?
which wire communicates with the ECU? and how - is it though volts from
about 1-5 or does it use a frequency output? I brought the kit from an
electronic store if u want to have a look - here is the link

http://www1.jaycar.com.au/productView.asp?ID=KC5374&CATID=25&keywords=&SPECI AL=&form=CAT&ProdCodeOnly=&Keyword1=&Keyword2=&pag eNumber=&priceMin=&priceMax=&SUBCATID=347

is a good place to look at two from little gadgets from ur car

here is another link with some more info on the meter and others

http://www.siliconchip.com.au/cms/A_101150/article.html


If anyone know the info about the Air Flow meter - would be greatly
appreciated

Cheers

Thanks heaps for your help - im now building the meter... now i know how to
hook up the o2 sensor - however I have now discovered that the two - one
for each cylinder bank im guessing - which is abit annoying in a way but
your right - they arnt to accurate anyway - im more just installing it so
i know what the engine is up to rather then using it for tuning or
anything. However with this meter - it does seem to require to be hooked
up to the AF sensor - so the question still remains - is it a vane type?
which wire communicates with the ECU? and how - is it though volts from
about 1-5 or does it use a frequency output? I brought the kit from an
electronic store if u want to have a look - here is the link

http://www1.jaycar.com.au/productView.asp?ID=KC5374&CATID=25&keywords=&SPECI AL=&form=CAT&ProdCodeOnly=&Keyword1=&Keyword2=&pag eNumber=&priceMin=&priceMax=&SUBCATID=347

is a good place to look at two from little gadgets from ur car

here is another link with some more info on the meter and others

http://www.siliconchip.com.au/cms/A_101150/article.html


If anyone know the info about the Air Flow meter - would be greatly
appreciated

Cheers

bigm wrote:
 


It doesn't hook up to the AFM/MAS, I promise you are mistaken on that. At
least I've never seen one that does. Are you sure that extra wire conection
isn't just for the dash light dimmer feature? I can't imagine why it would
want a signal from the AFM and wouldn't use one that did. The site you sent
me to says "While such a design - which works from the car's standard
oxygen sensor -" and says nothing about the AFM/MAS.
--

Steve

http://www.atlantaracing.com

fair enough - I wish I could send u the instructions becuase it does say it
needs the air sensor - but u very well could be right, u seem to know wot
ur talking about more then me - I will just hook it up without that input
and see how it goes - if it doesnt work - I'll cross that bridge when I
get there

Thanks Heaps for taking the time to help me - greatly appreciated.

Cheers

Mikey

fair enough - I wish I could send u the instructions becuase it does say it
needs the air sensor - but u very well could be right, u seem to know wot
ur talking about more then me - I will just hook it up without that input
and see how it goes - if it doesnt work - I'll cross that bridge when I
get there

Thanks Heaps for taking the time to help me - greatly appreciated.

Cheers

Mikey