hi all just purchased a td5 landmark 2004 from pulling away its dead till aprox 2-2500rpm then when turbo kicks in goes like a sports car had the codes read nd its coming up ambient pressure sensor fault having looked on ebay etc then under the bonnet ive discovered that their is no sensor in the airbox i found the plug which looks like its been disconnected for a while its got 4 pins can anyone tell me if all disco's have the sensor in the air box.the hole is their for the sensor so theirfor its getting air before and after the filter and before the airflow, also would the lack of this sensor cause it to be lifeless low down and show up ambient air pressure fault .

thought of searching for posts in the disco section might be an idea!

:welcome2:Migh be worth posting in the discovery section get more response,
mine is a 200 ES auto and from memory there is a sensor standing in front of car the pipe that comes of from the leftthere a sensor there and the next on is in the hard tube thik thats the maf mass airflow sensor. tyhats from memory can check tomorrow if you want

landy1uk said:

:welcome2:Migh be worth posting in the discovery section get more response,
mine is a 200 ES auto and from memory there is a sensor standing in front of car the pipe that comes of from the leftthere a sensor there and the next on is in the hard tube thik thats the maf mass airflow sensor. tyhats from memory can check tomorrow if you want

Click to expand...

mine is td5 d2 from what i can gather their should be a sensor on side of airbox but its no loger their was removed before ii bought it found the four pin plug that goes to it but i'm unsure of the part number now as i dont have 1 to take the number off

Sorry just noticed one of probley a few typos mines a 2000 TD5
I have a look later