I recently purchased a 1998 Volvo S70 T5 2.3 turbo and it runs great. I put a new air filter, plugs and wires, and a cap and rotor on it within the first 500 miles or so. One thing that I noticed after about 3 days of owning the car is that when you have it floored and the rpm's are climbing it will kind of hiccup or jerk like it stops running for a mili-second and then just keeps on going strong. I have no codes and I'm still getting good mileage, it only seems to do it when I have it floored. It also has no power off the line at all, not until you get to around 25 or so. Off the line I'd get beat by a power chair scooter. Any help would be greatly appreciated, I cannot afford to take it to a mechanic. Thanks in advance.