Skoda EA189 CFHC Common Rail in Yeti 4X4 TDi @ 50k miles:  Fault code P0120 G69 implausible signal:   There are a few fault codes that relate to the diesel throttle valve (T.V) which sits between the intercooler and the inlet manifold. In a gasolene engine, the TV(A) controls airflow in sync with the accelerator. In a diesel engine its only purpose is to produce a controlled vacuum to purge bad gases and reduce emissions by recirculating them. If this flap valve were to stay fully