The engine control module (ECM) monitors the intake manifold pressure (IMP) sensor and controls the boost air system (mainly controlled by the VGT) and the engine turbocharger compressor bypass valve. The ECM also uses parameters like engine speed (RPM) and turbocharger speed to make a calculation of the IMP. This estimated value should not differ too much from the measured value.
Conditions for diagnostic trouble code (DTC):
1) Regulation of Variable Geometry Turbo (VGT) or Exhaust Gas Recirkulation (EGR) system not possible
Probable cause
1) Turbocharger
Reviews
There are no reviews yet.