Hello, I had damaged exhaust back pressure sensor loom and sometimes I was getting a P0471 code with limp mode. But that used to happen like once a week. When I had it for service I asked them to look at it. They replaced ebp sensor and told me that the wiring loom need replacing. So after that car is all the time in limp mode with same code. So i got new wiring loom connected it to sesnor, i thought it will resolve the problem, but nothing changed, so just in case i changed ebp sensor again. But still in limp mode i hooked it up with icarsoft and got live reading of sensor which was 1.5bar what else I could check?