im just needing the plug off of it,if you have a bad one?

 

I think there is a way to not use the plug.. two of the wires just run to a resistor and the others run to the sensor. You can use a potentiometer and then change the resistance while it is in free air. Hope that helps.

 

how do i know what resistance it should be at,im an idiot when it comes to resistor talk,so speak like im a retartd,lol,thanx for the ideal though,ill go to radio shack tomorrow,just tell me what i should i should adjust it to.thanx.

 

ttt

 

I've heard of people having a resistor value of 3.3k ohms and 6.09k ohms... Basically a potentiometer is a resistor that you can turn the **** and the resistance value changes.. so if you could find one that covers the range say 1k to 10k ohms then you could use it. Now to calibrate it you will have to hook up everything and hold the sensor in free air (not in exhaust)... your wideband meter should have a value that is "free air".. i know on my diy kit it is 4.0 volts but yours may differ. Once you have everything running and you have a value just change the resistance of the potentiometer until it is on the correct voltage for "free air". Do you understand? Let me know if you have any problems. Good Luck!

 

your my new best friend,thanx alot,now,dont potentiometers need a positive and a negative,there are two wires that come from the diy kit called calr,one negative and one positive it says,so i just hook up the potentiometer to those two wires?then tune it in to say 4.0 volts in free air? sounds simple enough if thats all right,thanx alot spike.

 

I don't think it's really a positive and negative.. the way I understand it is there is a certain voltage or current going through the wire and you need to change the resistance of it. It shouldn't matter which wire goes to which wire on the potentiometer. I'm still learning about all of this and I just finished building my own diy-wb circuit from http://www.diy-wb.com.. just waiting on my sensor. PM me and let me know how it goes!!

 

Thanks, spike! Civictypenos has been PMing me because he knows I have a DIY-WB, but I've been slack about wiring it up and running it. I'm glad you could help him, and give good info for me in case I need it in the future.

 

lol,this is true,j. davis is always good help,maybe with the three of us,this will be figured out,thanx to both of you.

 

by the way,what disply can we use with this thing,i was told you can use the vafc to give you a read out some how,but im wanting an actual a/f ratio read out instead of the volt read out,will the techedge display work on one of these?

 

I'm not sure if the techedge unit will work with the diy-wb kit or not.. where did you get the wideband circuit you are using? As for the voltage readout the problem is that is not a direct linear relationship. There are a few people including myself that are going to be working no a way to not only show the exact A/F readout but also incorporate datalogging. We are working on datalogging RPMs and also Throttle that way you can review it. you will need this this product: http://www.dataq.com/products/startkit/di194rs.htm and also a laptop. if you go to http://www.diy-wb.com and check out the AFR reference chart you can refer to that when looking at the voltage.. otherwise you need some sort of display. Let me know what kind of wideband circuit you have..

 

im using the one from http://www.diy-wb.com/ everything is done,just have to get that potentiometer ,i plan to use the volt meter for now,but wanted to see if any one had made a decent display yet.