Burning up O2's. Keep 'em or pitch 'em?

[325DR]

Do you guys change your O2 sensors as soon as they set a code? It is getting expensive to replace them after every track visit or if I drive on the street for a little while. Since the ECM doesnt use the O2 for WOT fueling, can you just leave it in there even though it has set a code? Will it cause any problems? I know that if you use a fresh O2 over a burnt out O2, you will pick up .1 to .2 in the e.t. Thanks for any feedback.

 

[tim87tr]

I am not sure about driving issues since I never noticed too many with a coded O2, but of course it would hurt your mpg. I would keep them, I have some old coded ones to try out with the Extender chip. You can set it to run full time open loop and I thought I would add some 110, put in the old O2 sensor, and try that out.

I have done that once and did not notice any problems. I think the ecm used previously learned data for the non-WOT fueling, but I'm not sure. So if you ever use the Extender chip, here's a reason to keep them.

 

[striker_29]

You can go to Autozone and buy a Bosch O2. They have a 90 day warranty Or you could buy a heated O2. My O2

 

[Chuck Leeper]

O2z?

Put in a NEW AC sensor and put an alky kit on and forget bout changing them every week!! That's 4 a month at $30.. 3 mo and the alky kit is pd for!!
Oh ya, forget bout the Bosch sensor too.. use the AC!!

 

[bruce]

Originally posted by striker_29
You can go to Autozone and buy a Bosch O2. They have a 90 day warranty Or you could buy a heated O2. My O2

Bosch,
I got 3 bad ones in a row, who cares if they have a warranty if yo have to change them every 3 days.

Find a chip that works for you, and then get someone to make a open loop disabled version.

THEN
drive it with the old chip and with the O2. Let the ecm learn in.
Then change chips, and remove and plug the O2 sensor location.

If you clear the ecm you have to go back thur things, but if you just want to do this when racing it's not too big od deal.

 

[Wes]

Originally posted by bruce


Bosch,
I got 3 bad ones in a row, who cares if they have a warranty if yo have to change them every 3 days.

Find a chip that works for you, and then get someone to make a open loop disabled version.

THEN
drive it with the old chip and with the O2. Let the ecm learn in.
Then change chips, and remove and plug the O2 sensor location.

If you clear the ecm you have to go back thur things, but if you just want to do this when racing it's not too big od deal.

he obviously is changing them every 3 days....and at least it would be free to do so

 

[blackbuick87]

Most Bosch o2's wont throw a code. You dont know they are bad until it makes your car run like crap at part throttle. By then they are REALLY plugged up.

 

[REDS HOT AIR]

bosch's work fine for my bucket

and they outlast my buddy's heated delco's