Bad O2 sensor kill HP?

[Jackelfox]

seems a fine thread to hijack... I cleared some codes the other day... O2 sensors are on their way and just wanted to get rid of that light. I specifically thought to myself on the way out of the neighborhood "this car couldn't possibly be running any better" then i cleared the codes... ever since, right about variocam kick in the car seems to bog. I hope this is the car learning itself back, the code has already returned (driven 100+ miles) but it hasnt seemed to work itself out. Now i am scared to death the clutch is slipping if the O2s dont solve the issue. Is this normal as 02s go out or as codes are reset? i used a OBDII not the battery trick. Any help would be appreciated, i'm not excited about springing for a clutch right now.

[Topless]

It could be a bad O2 sensor...OR it could be an O2 sensor reporting another problem. What error codes are you getting?

[BoxsterLewis]

JAckelfox that happen to me too, right when you think the power is gonna kick in it felt like it died, for me it was my intake not getting enough air due to me using a boxster MAF housing on the 996 motor. Using a 996 housing fixed it right up.