arent the 5wire O2s widebands? like VX's..

red, yellow, white, orange, black?

if so ynot just plug these in for ur "tuning" session into your sencond bung if u have one or for these purposes...blah, or whatever, hook up all the wires to heater...signal, etc...(COULD SOMEONE LIST WHAT THESE OTHER WIRES DO)

and measure with a good volts meter or some device, the voltage through the powerband?

obviously no logging or stoich readings and no LAMBDA display but 1 volt is stoich so aim for that with your tuning system?


[Modified by hybridvteceg, 10:15 PM 4/6/2003]

 

you need the wideband controller as well. then measure the output voltage from the controller.

 

what does the controller do that a simple volt reader cant? i have no idea about this stuff, lol

 

controller provides propoer voltage and signal for heater and has the proper conversion for sensor raw outpout

 

why cant you just send thr right voltage to the heater, and u dont really need a conversion if u know the raw volt numbers correlation to the LAMBDA scale right? does neone know the correct volts toi the heater, should be 5 or 12 V right, which you can get through constant power.

 

do some reading here http://www.diy-wb.com/info.htm . you need a driver circuit.

 

ahh i did read there..but its confuzing ne help?

 

basically if its only reading a voltage why cant you use it this way?

 

come on...

 

i know someone else has an idea about this setup...

 

I think he is serious, and correct, in pointing you to the oz DIY site.

A short answer to your question of why can't I just read the voltage and translate it myself is that part of what the circuitry (controller) does is provide very stable and accurate reference voltage/current required by the sensor, and in return gives you a simple voltage as output.

In other words, there is no 'voltage' to measure without a controller.

By itself, the 5-wire sensor sinks current in complicated ways. The controller handles the complexity and give you a simple A/F --> voltage output.

If you don't have the time, inclination, or training to get through the OZ material, you don't want to mess with the sensor.

?

Mark

 

i can "get through" it just didnt want to...

but im saying if u send the 5wire a good voltage, why cant you really just read the output... 1 volt is perect right...then thats what ur aiming for..?

 

simply not possible. 1v: you're still thinking of a narrow band sensor. you're just gonna have to trust us on this one. you NEED a controller. its a lot more complicated than a narrow band sensor.

 

1v Lambda is stoich..

also straight off their site:
There are several options for a display for the output of the DIY-WB controller.

The simplest, is a plain DVM (Digital Volt Meter). Use the Vout to AFR chart http://www.diy-wb.com/v_out.htm


[Modified by hybridvteceg, 8:23 PM 4/8/2003]

 

2.5 volts from the sensor is stoich in accordance..