The aftertreatment diesel particulate filter (DPF) atomization air pressure sensor is used to monitor the pressure of the compressed air supply to the aftertreatment DPF atomization module during active diagnostics and measures the combined atomization fuel and air pressure during burner operation. The sensor consists of a pressure sensitive diaphragm/amplifier sensor. Air pressure causes the sensors diaphragm to deflect and produce an electrical signal proportional to the pressure. The diaphragm deflection signal is amplified in the sensor. Conditions for diagnostic trouble code (DTC):1) Low air pressure detected during active diagnostics check of the pressure regulator in the aftertreament diesel particulate...

The aftertreatment diesel particulate filter (DPF) combustion air valve is controlled by the aftertreatment control module (ACM) output. The combustion air valve is normally closed and is opened when a ground signal is supplied by the ACM to the combustion air valve solenoid. When opened, charged air from the intake manifold is supplied through the combustion air valve to the aftertreatment DPF combustion chamber. Conditions for diagnostic trouble code (DTC):1) Exhaust oxygen is too low Observable symptoms1) Regeneration not possible Probable cause1) Low air pressure2) Faulty combustion air line3) Aftertreatment DPF Combustion Air Solenoid4) Aftertreatment Diesel Particulate FIlter (DPF) Combustion...

The aftertreatment diesel particulate filter (DPF) combustion air valve is controlled by the aftertreatment control module (ACM) output. The combustion air valve is normally closed and is opened when a ground signal is supplied by the ACM to the combustion air valve solenoid. When opened, charged air from the intake manifold is supplied through the combustion air valve to the aftertreatment DPF combustion chamber. Conditions for diagnostic trouble code (DTC):1) The voltage at pin A137:33 is above normal value Diagnostic operating conditions1) Ignition key in ON position Observable symptoms1 )Regeneration not possible Probable cause1) Short circuit to voltage supply, Control...

The aftertreatment diesel particulate filter (DPF) combustion air valve is controlled by the aftertreatment control module (ACM) output. The combustion air valve is normally closed and is opened when a ground signal is supplied by the ACM to the combustion air valve solenoid. When opened, charged air from the intake manifold is supplied through the combustion air valve to the aftertreatment DPF combustion chamber. Conditions for diagnostic trouble code (DTC):1) The voltage at pin A137:33 is above normal value Diagnostic operating conditions1) Ignition key in ON position Observable symptoms1) Regeneration not possible Probable cause1) Short circuit to voltage supply, Control...

The atomization air valve is part of the atomization module and the combustion air valve is located on the engine. Both are controlled by the same DPF ECU output. The valves are normally closed and are opened when voltage is supplied by the DPF ECU. When opened, compressed air supplied from the air tank through the priority valve is supplied through the atomization air valve to the atomization nozzle while charged air from the intake manifold is supplied through the combustion air valve to the DPF Unit combustion chamber. Observable symptoms1) Regeneration not possible Probable cause1) Aftertreatment Diesel Particulate Filter...