O2 sensor

Swbari00 · Post by **Swbari00** » Tue Jul 24, 2007 5:01 pm

I just replaced my O2 sensor, the one after the cat and my light is still on. Does it take time to reset for have I screwed up? Also, I used a Bosch sensor, should that matter?

killian96ss · Post by **killian96ss** » Tue Jul 24, 2007 6:12 pm

Why did you replace the post-cat 02 sensor?

What 02 sensor code set the light?

Did you clear the code?

Sorry for all the ?'s.

Sometimes Bosch 02 sensors can cause problems when used as pre-cat sensors, but in your case it shouldn't matter since you installed it after the cat which is only used for OBD2 monitoring purposes.

Steve

Swbari00 · Post by **Swbari00** » Tue Jul 24, 2007 6:33 pm

I took it to what ever parts store it was and they hooked up the computer and said thats the one that is bad. I have no idea what the code was and I don't think I cleared any code. I guess the morale of my story is I know nothing...

Post by **HenryJ** » Wed Jul 25, 2007 2:34 am

Make sure theftloc is disabled. Disconnect your battery , wait three minutes and reconnect.
That will clear the code.
See if it returns.

Swbari00 · Post by **Swbari00** » Wed Jul 25, 2007 2:46 am

THeftloc????

You think I would still use a factory radio!?!

I will try that, thanks.

Swbari00 · Post by **Swbari00** » Wed Jul 25, 2007 11:27 am

THey told me at advanced autoparts that the light even after you unhook the battery takes about 40-60 miles to reset. He told me I should have unhooked the negative cable from the battery while installing it, does this sound right or are they just trying to get out of replacing a bad sensor they sold me?

CrashNburn · Post by **CrashNburn** » Wed Jul 25, 2007 1:29 pm

ive never heard of driving 40-60 miles after disconnecting your battery LoL.. disconnecting your battery for a few minutes will cause your computer to remove codes stored in your ROM. thats all it can do to codes. it doesn't fix anything. If you get your vehicle computer read by a code reader it wont always tell you the source of the problem.. example, my 01 windstar I used to own, gave me a P0107 Engine Lean Bank One. I sourced the problem to be the intake gaskets, the dealer said i had a bad injector. Get the code. And post it here. I should be able to help you.

Swbari00 · Post by **Swbari00** » Tue Jul 31, 2007 3:32 am

I finally went back to Advanced Auto Parts and got a second reading on my truck. The guy said the same thing, bank 2 sensor 1. I told him that is what the other guy told me and it is the one right behind the cat. converter. He said no it should be the one on the manifold passenger side. Since the other guy told me the wrong sensor and sold me the one you cut the harness off the OEM sensor and connect it to the new sensor, I couldn't put the OEM sensor back on. The new guy at the store let me exchange my old OEM sensor for a new and correct sensor. In the end, I ended up with 2 new sensors for about $80.

killian96ss · Post by **killian96ss** » Tue Jul 31, 2007 5:23 am

All 3 02 sensor positions use the same GM part # and you should not have to cut the wiring harness to install them.

Always use GM 02 sensors if possible to avoid problems like this.

Hopefully your problem is solved for now.

Steve

Swbari00 · Post by **Swbari00** » Tue Jul 31, 2007 6:32 am

So all 3 (i think there are 3) O2 sensors are the same? Hmm. Well at any rate, all the wiring on the truck is still there. It was only the harness on the sensor side that I had to cut as I was not about to cut a harness off the truck. To answer your question, no not all is solved yet as my SES light is still on.

killian96ss · Post by **killian96ss** » Tue Jul 31, 2007 11:17 am

Swbari00 wrote:So all 3 (i think there are 3) O2 sensors are the same?

Yes, they are all the same and can be installed in any position.

Steve

Swbari00 · Post by **Swbari00** » Tue Jul 31, 2007 12:28 pm

Well if I would have known that then I wouldnt have gotten a second one for free

anyway, it is all fixed now so it seems!

purduecrew · Post by **purduecrew** » Sun Mar 16, 2008 5:57 pm

ebay link for VIN=X engines

Delphi is an OE manufacturer, but is this too good to be true???

roadrunner · Post by **roadrunner** » Sun Mar 16, 2008 6:09 pm

I've seen sensors near this price before but not quite that low for a heated one.
04/27/08 update: Just installed all 3 new sensors from the above named e-bay vendor (global automotive). Got em for my 01 CC 4.3 for $19.95 each plus about $9.00 shipping. Borg-Warners and seem to be functioning okay.