Hi everyone, I bought a 02 plate Omega 2.2 dti and the owner told me it goes into limp mode every now and again mainly when going uphill and giving it some welly. I drove it home and it was fine. Today I plugged in my obd bluetooth diagnostic thing lol and used my Torque Pro app and i noticed the boost was way up on the dial. What would usually cause this and what would I need to do to solve it. TIA.