My girlfriend and my mother bought me a Jag for Xmas and it drives good. I got it up to 105, but when I take off it has no power. It seems almost sluggish. When I floor it the RPM's will go up, but it doesn't move like it should. I've put new plugs, new tires, new fuel filter, new air filter and have changed the oil. I have used injector cleaner and complete fuel system cleaner. Any suggestions would be much appreciate. Thank you.

 

The one i just bought does the exact same thing.(i just picked it up yesterday) So yea, does anybody know what the cause of this could be...

 

Make sure that the air flow meter is functioning properly. If it is starved of oxygen, it will not perform.

 

Also, replace coolant temperature sensor. It goes bad frequently.