My car has a bad case of the buckings and poor engine performance. 0-60 seems to take me about 8 seconds. The loss of power seems to be throughout all of the rpms. The hesitation in the car's revs are bad enough that I have to put the gas pedal all the way down to do a 1k rpm rev match. I'll try to get an acceleration and rev video on here.
I've read around and I think I'm going to go ahead and replace the fuel filter and vanos seals. If that doesn't help the bucking and hesitation I'll go ahead and clean and crimp the pins in the exhaust vanos solenoid (http://forum.e46fanatics.com/showthread.php?t=856781)
I don't think I have MAF issues, as it was replaced not too long ago.
What's the best way to diagnose poor O2 sensors?
Please post if you have any additional thoughts or ideas that could help me fix these issues.