Volvo All Engines (2010 Emissions) Fault Code: SPN 3226 FMI 20 PID: PSID 90 Aftertreatment Outlet NOx

Category All Engines (2010 Emissions) Tags 20, 2010, 3226, 90, Aftertreatment, All, CodeSPN, Emissions, Engines, Fault, FMI, NOx, Outlet, PIDPSID, Volvo

The NOx sensor measures the amount of NOx in the exhaust system. The NOx sensor is connected in the J1939-2 data link. This diagnostic trouble code (DTC) indicates a NOx monitoring failure. For example; NOx sensor short- or open circuit, NOx sensor removed, NOx sensor missing signal.

Observable symptoms
1) None

Probable cause
1) Sensor not mounted in exhaust stream
2) Faulty sensor

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Volvo All Engines (2010 Emissions) Fault Code: SPN 3226 FMI 20 PID: PSID 90 Aftertreatment Outlet NOx

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Volvo All Engines (2010 Emissions) Fault Code: SPN 3226 FMI 20 PID: PSID 90 Aftertreatment Outlet NOx

CAT ET 2026 Diagnostic Software

DETROIT DIESEL DIAGNOSTIC LINK 8.23 SP2 2026

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