Hi guys. Just been into VCDS after returning from a 30 min journey, car cooled for 10 mins then i connected VCDS & in the Adv. Meas. Values I found 4x exh. temp. sensors 1-4 but 2 has no value, it's constantly at 0 deg. C. whilst the others were showing 21 deg.C, 65 deg.C & 24 deg. C. Is this...