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Hi. I have a problem with the rough-running engine which hesitating and choking when accelerating. After checking the codes, I got a few errors. I found 3 errors that, in my opinion, may affect the power drop.: (1) 452A Info - DPF , (2) 4501 - Exhaust Gas Recirculation - Negative deviation or air mass too high , (3) 4390 Boost Air temperature sensor - short circuit to B+. For now, I wanted to focus on the last fault. After inspection, I saw that the sensor is plugged into the intake pipe but the cable is missing (?!). Unfortunately, I can't see any loose cable and I I am note sure where it should go. I enclose two photographs and want to ask to help me locate the cable and the plug. After sorting that I will perform pressure measurement on DPF to see if its clogged. Thanks for help.
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If you put your VIN number into realoem.com you can look at the exploded parts diagrams which might help you trace where the wiring is supposed to start/end.
 
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