2003 Land Rover Freelander loses power

I have a 4cylinder freelander its loosing power but all coil packs were changed now but it continues to loose power

Then changing the coil packs wasn’t the problem, now was it?

If this was a DIY repair, stop. You are just tossing random parts at it hoping for a fix. This rarely results in a fix and always results in wasted money and frustration.

If it was a shop doing the work, let them diagnose the problem. We can’t help given the tiny amount of information you just supplied.