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Isuzu US-IDSS 2024 Diagnostic is a comprehensive tool for the effective maintenance and repair of Isuzu vehicles. It integrates advanced diagnostic features to assist technicians in identifying and resolving issues promptly. This system supports a wide range of Isuzu models, ensuring compatibility with both US and Canadian specifications. Its capabilities include vehicle recognition, fault code analysis, and real-time data access to streamline the diagnostic process.
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Volvo All Engines (2010 Emissions) Fault Code: SPN 3491 FMI 12 PID: Aftertreatment DPF Atomization Air Actuator

Volvo All Engines (2010 Emissions) Fault Code: SPN 3491 FMI 12 PID: Aftertreatment DPF Atomization Air Actuator

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Created by potrace 1.16, written by Peter Selinger 2001-2019 Installation with TeamViewer for free

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 symptoms
1) Regeneration not possible

Probable cause
1) Aftertreatment Diesel Particulate Filter (DPF) Atomization Module (Aftertreatment DPF Atomization Air Actuator)

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