Hello can anyone help please. I'm having problems with the turbo temperature gauge its stopped working and the engine management light is on. I've had a new air mass sensor put on I've also had the turbo replaced. When the car was plugged in to read the codes its saying air mass but it's been replaced 3 times and I'm using genuine parts.

 

If you mean oil temp gauge not reading,a oil pressure gauge always reading high, it will be your map sensor at fault