ok 2001 range rover and i checked everything i know 2 do read all the posts and threads i am lost, rear will work just fine and font will no go up, i tryed eas unlock i made cables my scan tool lunch431 has all the new range rover sup but nonthing pre 02 can someone help,

 

Could be a number of things. Have you checked for leaks, the condition of your air bags, etc.? The height sensors could be out of wack along with the valve block.

 

Usually when you get the fault the whole vehicle will go down to the bump stops. You can download the software you need from RSW Solutions, it is free but it works so you may want to give him some money when you use it to fix your truck. Until you clear the fault you will not be able to tell that issue is.

 

Like Rob said cleal the fault, after that just run the conpressor to fill the tank, takes about 10 min or so than see if it will move. If you have a leak over time with out driving it the tank will loose the air . This is what I was going throw with my rover. I still have a leak I think only drops when it bellow 30.. Silly lil EAS...So after I start my Rover I hear the conpressor kick on I open my door and that allows the tank to fill, onec that is done it works great.. Hope that helps...But I am still new here so....