My car had a bosch o2 sensor which lasted about 5 months. It must have been going bad ever since I had my turbo on. It finally craped out and I got a cel so I replaced it today with a oem o2. All I can say is wow! No more low idle, no more hesitation, and alot more power. The vac to boost transition is alot smoother too. So any one experiencing a low rough idle or hesitation you might want to concider replacing your o2 sensor. (I dont suggest a BOSH replacement. they are junk!)Just though I would share the news!
#41967, "RE: Read, everyone with a o2 Cel" In response to Reply # 2
I actually got it off of ebay. It is not for the eclipse specifically but it is for a chrysler engine with a similar plug and with little modification to the plug I got it to work great.