O2 sensor replacment
first off wow what an improvement there was a major hp jump in the lower rpm.
Replacing your O2 sensor is not that hard at all if you have wd-40 and a pair of mechanic gloves
If your car is over 100,000 miles then change it if you never did.
Last edited by theironm0nk; 09-10-2005 at 11:33 PM.