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PACCAR PX-8 CM2150 (2007-09) Fault Code: 1993 PID: SPN: 3064 FMI: 11 Aftertreatment Particulate Trap Missing – Condition Exists. The aftertreatment diesel particulate filter in the exhaust system is not present.

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM.

Possible causes:

1)The aftertreatment differential sensor can be stuck in range
2)The aftertreatment diesel particulate filter has been removed from the vehicle
3)The aftertreatment diesel particulate filter is cracked or broken
4)The aftertreatment diesel particulate filter differential tubes are installed incorrectly, broken, loose, or have been tampered with
5)The aftertreatment diesel particulate filter differential tubes are installed backwards.

Possible repairs:

1)Replace the differential pressure sensor.
2)Replace the aftertreatment diesel particulate filter differential pressure sensor tubes.
3)Replace the aftertreatment diesel particulate filter differential pressure sensor.

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