I have 140,000 miles on my 2003 Tacoma 3.4L V6. I've recently experienced power loss and slow acceleration so I purchased a K&N Cold Air Intake to boost the hp. This helped, but from time to time I would begin accelerating from stop and have the pedal to the floor, but RPM's/speed would not increase. I cleaned the mass airflow sensor but to no avail. Since this is obvioulsy dangerous pulling into traffic, I removed the cold air intake. Does anyone have any thoughts on the power loss and why the cold air intake did this? Even with the stock air box, there seems to be less power than normal.