hey ya'll ... not a bonny but my 90 olds has a series 1 3800 and I had an error code pretaining to the O2 sensor being bad..so I replaced it with one that I bought from murrays' .. it was a bosch.. I asked for delco but that is all that they had....now I have had it in there for like a month i'll say and it had been fine......I was reading here and there that you dont like the bosch.. any reason? effects after using... will I get another error code E013 I think soon?

I am running outta a budget to tune this car up from its 4 year rest...just trying to reacerch everything before I buy parts..
again

It won't throw a code any time soon. The problem is that it allows the car to run too rich. My experience, and that of several others is that the fuel efficiency never fully recovered when I replaced my original O2 with a Bosch. I had the classic rotten egg smell in the cat at the same time.

I didn't heed the warnings, because that'* all that was available for my car too! I know better now, and I've watched several others have the same problem and come to the same conclusions, too.

With fuel prices being what they are now, the wrong O2 sensor can end up costing you in the long (or short) run.

Well, maybe it depends on the engine then, as my Bosch O2 has been in there for two years now w/o any ill effects! :? Then again, my engine is different from most by NOT having a EGR Valve. Of coarse this may change once my SC Swap is done though.

I was looking at the NGK site and it seems they are a really BIG supplier for OEM plugs and O2 sensors.

Is the NGK unit OK? As they are the AC-Delco Platinum plug maker, I'm suspecting they may also be the maker of the AC-Delco O2 sensor...
Just wondering.

I don't know, and I've never heard from anyone that put an NGK O2 sensor in their car. Anyone up for 'taking one for the team'? Other than the Rat, I've heard no good experiences with Bosch O2'*. It may be that the EGR-less 92 NA'* actually do ok with them. I know the 87-91, 92SC, and 93-present (all models) have had bad experiences with the Bosch. Bosch plugs too, and now a premature failure of Bosch wires.

Our engines tend to run hotter than average, and that may be the answer to all of this. Maybe it'* time I contacted Bosch and filled them in. They may have some answers for us, or may be able to change/improve their product.

Same same for Jseabert. He'* due to change his O2 because of his coolant leaks, too. That O2 sensor can pay for itself very quickly with high gas prices. Or it can allow you to lead foot a little more than normal if the budget allows !