Adding Wideband o2 for Tuning

[jmgtp]

The tuning of my LX9 swapped Grand Prix (OBD I) has come to a temporary halt for winter and will resume in the spring. I've been long distance tuning - meaning I datalog and send the file to the Tuner, he sends a modified bin, I datalog again, he modifies again. The tuner mentioned that a wideband o2 would make things a lot easier. I'm considering it if I can do it at low cost.

I know little to nothing about widebands. Will any wideband o2 work? Only a specific one? If you search for wideband o2 on ebay plenty comes up and some are very cheap. They list as being specific to certain cars and not for tuning purposes. Are these true widebands?

Second thing, a wideband will do me no good if I can't get it to interface with my OBD I ecm, and further get that data into my datalog. I'm assuming the signal wire would go to an unused pin on the ecm - which one, I have no idea. But, wouldn't the definition file I use for TunerPro also need some serious tweaking in order to pickup on the data from the wideband and make it into some kind of sensible information? Again, no idea how to do that.

So am I in way over my head or is this doable? I really cant afford to throw too much $ at it. It'd be great if 'any' of those ebay widebands would work since they seem fairly inexpensive at around $50.

here are a few examples:

http://www.ebay.com/itm/BOSCH-UEGO-LSU-4-2-0258-007-206-WIDE-BAND-O2-SENSOR-AEM-FAST-PLX-/170775640476?pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr&hash=item27c305799c

http://www.ebay.com/itm/VW-wide-band-O2-sensor-/280733722389?pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr&hash=item415d08a715

[bob442]

this is just the sensor, you will neeed a gauge and something to log the info, a wide band will not hook up to your ecm and give it a proper reading. you are looking at a gauge/sensor setup. there are lots of choises out there, they start at 200$

[Superdave]

What mask are you using?



bob442 is right, the sensors are fairly cheap (Bosch LSU is around $50) it's the controllers that are pricey. You need one with a 0-5V output that you can hook up to the ECM.

http://www.innovatemotorsports.com/products/lc1.php is a pretty common one and it's not too expensive.

[jmgtp]

I'm not sure of the mask - Ben would know that since he is the Tuner

So, if I understand correctly, the wideband would need a controller and the controller converts the signal into a 1-5 volt? Then that can be fed into the ECM for datalogging purposes through the serial cable?

Regardless, $200 is out of my reach right now. Seems like gas, food, property & income taxes have all gone up from a year ago - only thing that hasn't gone up is my salary! It's getting tougher and tougher to spend on things like this when the cost of basic goods is killing my wallet. I'll have to talk it over with Ben to see how necessary it is. I don't need the car to be a max performer, I just need driveability and emissions compliance. Good gas mileage would be the gravy on top.

[Superdave]

That's how it works, i think mine was wired into the A/C pressure switch line on the ECM but i'd have to double check. The $A1 hack uses that port to pass the info through the datastream and then into Tunerpro. It's extremely useful information to have.