miss fire hell out of ideas
 

Disco 2 99 model was running fine stopped at restraint started back up backed up and it stalled, it fired back up but had no power and a bad miss pulled codes it 304 305 307 changed plugs wires and sea foam no better, still getting 304 305 307 won't idle well and I am at my whites end any ideas would be grateful

First you can check to see if you have spark on any of those cylinders. If you have a spark tester it's really easy. Do you know if those three cylinders are on the same coil pack? If so, it could be a bad one. I forget which cylinders run on which coil.
Let us know what you find.

i "believe" there are 2 even and 2 odd on each coil pack

HOW MANY MILES ON YOUR ENGINE? Spark tests are a real joke, only takes 10 plus volts to fire most when you need to verify if your are getting an equal 30,000 volts plus for a good coil fire.

The rover has 114000 miles and two plugs are on one coil and 1 on another

have you ever replaced the ignition wires?

Changed wires and plugs

Check the boots on the plugs.
They have to be seated properly.
You need to push them down until you feel the metal cap engaging the plug.
You may benefit from just a dab of spark plug silicon on the inside of the boots to help them ease on.
but just a tiny tiny bit.

Check that you put your maf back on OK.
Check the rubber pipe from the MAF to the plenum.

Make sure you put the MAF plug back on the maf properly.
Make sure you have the air box temp plug plugged into the air box temp sensor upstream of the maf.

Post your fault codes.

Use http://enginecodemaster.com to look up rover codes. Enginecode master was made from the landrover service manual.

I have changed plugs, wires, coils and still no good popped anew code p1884 its a stretch but could a weak battery be causing my missing issues