A/F display without a seperate wideband controller?

inh · Post by **inh** » Tue Jul 25, 2006 9:13 pm

Im kinda confused on this.. Is there a way i can wire in a 4 wire O2 sensor to the s300 so that the datalog feature will display the cars O2 readings, or must i absolutly positivly buy an A/F guage/meter? I have an O2 sensor, just not guage. thanks

edit: is it possible to wire up my normal one wire O2 sensor to the narrowband input on the ecu, and then use another bung and the wideband O2 wired to ELD? I think this is possible...

IM trying to save some cashand not have to buy a wideband meter :-/

Preccord00 · Post by **Preccord00** » Tue Jul 25, 2006 9:22 pm

it's my understanding that in order to get an accurate A/F reading you need a seperate controller, this can hook directly into hondata via the ELD line that goes into your ECU. I know PLX A/F has the option to come with the controller/O2 sensor or controller/O2 sensor/Guage. So you don't nececarilly need the guage, just the sensor w/controller. There's some tech info on this website about wiring in that controller to hondata.

inh · Post by **inh** » Tue Jul 25, 2006 9:23 pm

yea I've seen the PLX stuff, was just hoping I could do without it.

locash · Post by **locash** » Tue Jul 25, 2006 11:27 pm

Unfortunately, the obd1 Honda ecu cannot control a true wideband air/fuel ratio sensor, so an external controller is needed for this. On a side note, I just read that PLX released a sub-$200 controller with sensor that will work with the S300..

TurboGSR96 · Post by **TurboGSR96** » Wed Jul 26, 2006 5:33 am

locash wrote:Unfortunately, the obd1 Honda ecu cannot control a true wideband air/fuel ratio sensor, so an external controller is needed for this. On a side note, I just read that PLX released a sub-$200 controller with sensor that will work with the S300..

Really? Do you know the model name of it?

kesnut · Post by **kesnut** » Wed Jul 26, 2006 6:32 am

http://plxdevices.com/products_SMAFR.htm

was now looking at it...

inh · Post by **inh** » Wed Jul 26, 2006 6:37 am

i saw that last night, funny they dont sell it in thier store though :?

I want a guage, so I'll probably get the... m250 with a black guage..

TurboGSR96 · Post by **TurboGSR96** » Wed Jul 26, 2006 9:04 am

Not too shabby, I think I am just going to keep my AEM and use this setup for the datalog/narrow band and call it a day. Plus running the 2 will give me a point to double check the readings.

Jaker · Post by **Jaker** » Sun Jul 30, 2006 1:03 pm

inh wrote:i saw that last night, funny they dont sell it in thier store though :?

I want a guage, so I'll probably get the... m250 with a black guage..

Do you have an Autometer air/fuel ratio gauge now? PLX has an adapter box that converts the wideband signal into something that you can read on the Autometer gauge. I've been using this for a year or 2 now, and it works great.

This will save you some money if you already have the Autometer gauge.

http://www.plxdevices.com/NB_WB_GaugeConv.htm

inh · Post by **inh** » Sun Jul 30, 2006 1:17 pm

im jmust going to save for the $200 sm afr that they are working on getting produced right now. i emailed them about it and they will accept a preorder if you want it. I would but i deploy to NTC this saturday and ended up spending my money on a vtec head :p