Wideband O2 and stock heated O2 questions. have an idea need some advice.

[GLHNSLHT2]

Ok my g/f's 04 libby just threw a O2 sensor code for the heating circuit being too high at 60k miles. What I want to do is drop a Innovate WB02 on the thing and eliminate both factory O2 sensors by feeding the two analog outputs to the ECU and simulating the output of both O2's. But I need to get around the heating circuits. Can I just measure the resistance across the stock O2 and then wire in a resistor from Radio Shack?? The mileage dropped from 17 down to 15.5 in the 1/2 of tank that we've used since the O2 sensor code lit up.

Thanks!

[turbovanman²]

I don't see why that wouldn't work but an easier option for the rear ox sensor is an eliminator unit, there made to trick the computer into thinking the rear ox sensor is working when its not there. The front, the resistor thing should work, give it a try, whats the worst that could happen, ;)

[GLHNSLHT2]

I'm trying to do this a bit cheaper and I think by programming both analog feeds to the ECU I won't need an extra kit, an I'll have to deal with the front O2 sensor heater circuit as well. Also have to convince the G/f it'll work.

[turbovanman²]

Buying a wideband seems kinda expensive, ;)

[GLHNSLHT2]

cheaper than buying a wideband an a o2 eliminator kit :) Plus trying to get a bit better MPG out of it.

[GLHNSLHT2]

http://www.o2simulator.com/index.php?main_page=product_info&products_id=12&zenid=da06f78df61541dd170254b7c1048797

think that'll work???

[nBALLS]

When you feed the same signal to the front and rear, the ECU is going to think that the cat is bad, but if you use the eliminator, that shouldn't be a problem.

[GLHNSLHT2]

Duh :)

[nBALLS]

http://smiliesftw.com/x/hsughmamoru.gif

[turbovanman²]

http://www.o2simulator.com/index.php?main_page=product_info&products_id=12&zenid=da06f78df61541dd170254b7c1048797

think that'll work???

Looks pretty good, they also have signal simulators, that would be good for the rear ox sensor.

[GLHNSLHT2]

well I should be able to manipulate the 2nd analog output of the Wideband to do the same thing.

[turbovanman²]

well I should be able to manipulate the 2nd analog output of the Wideband to do the same thing.

Well, the rear ox shouldn't really move, thats how the computer figures out the cat is dead.

[GLHNSLHT2]

let me clarify that last statement. To do the same thing the rear O2 does :) I'm going to put a volt meter on it and see what kind of voltages it's outputting then have the wideband just output a similar signal.

[mech1nxh]

scan tool

mode $05...
basically an "enhancement" of mode $01...
saves the time of measuring voltages directly.

also the readings you receive will be a bit "contrary"
to the standard "cat monitor sensor should be flat line"

resistor(s) may work, but I don't know for sure, as I have
not closely examined the programing parameters between
switch time and heater rise time in the oxy sensor heater
monitor program..

looks like your the "virgin" on this run.....