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.
Volvo All Engines (2010 Emissions) Fault Code: SPN 111 FMI 5 PID: Engine Coolant Level
Volvo All Engines (2010 Emissions) Fault Code: SPN 111 FMI 4 PID: Engine Coolant Level
Volvo All Engines (2010 Emissions) Fault Code: SPN 111 FMI 3 PID: Engine Coolant Level
Volvo All Engines (2010 Emissions) Fault Code: SPN 111 FMI 18 PID: Engine Coolant Level – Moderately Severe Level
Volvo All Engines (2010 Emissions) Fault Code: SPN 111 FMI 1 PID: Engine Coolant Level
Volvo All Engines (2010 Emissions) Fault Code: SPN 110 FMI 5 PID: Engine Coolant Temperature