It all started with the check engine light. After changing the EGR valve, having the cat's checked and new O2 sensors, I took the car to PEP Boys for a general tune up. They did plugs, wires, coil, coil wire, cleaning the injector throttle body but still had no engine power at low rev's. Checked vacuum, found that vacuum went away when giving it the gas. When rpm's get to 1500 to 2000 the car will run fine. They worked on it a week and honestly when i got it back it was worse, as well as my wallet [650.00]. Does any one know what the problem is so i can fix it and not just start swapping things out WILLIE NILLIE.