I have a heads and cam car with SLP headers and PCM For Less tune, and my car will not run good for long with these bosh o2 sensors? I exchange them at the store for new ones, they work for a bit, then crap out again.

Anyone else have this issue?

 

bosch o2 sensors suck. check out this web site www.getgmparts.com

 

Yep. Terrible on the ford I own not my choice though. Gas mileage and performance both dropped and this was after replacing the 160,000 stockers.

I would never put them on an American car. Stick with oem delcos for best mpg/performance

 

I got the OE replacement (not universal) at AutoZone and they work great for me after 15K miles. I don't now what all this fuss is about.

 

IMO, it seems that the cars that run rich shorten the life of the Bosch. Whereas the OEM can sustain the rich A/F for a longer period of time.

 

I have had mine for a couple years now. But my car doesn't see alot of miles though either.