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Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3250 FMI 14 (ACM) Abnormal Diesel Oxidation Catalyst Temperature Rise 2

NOTE: Excessive idle times may lead to this fault due to high HC accumulation on the diesel oxidation catalyst (DOC).

NOTE: If any other codes are active, fix those first.

PROBABLE CAUSES:
1. Inspect all connectors upstream of the MCM (DOC outlet temperature, ATD harness 10-pin connector, VIH 31-pin connector, and ECM 120-pin connector).
2. DOC outlet temperature sensor.
3. DPF inlet pressure sensor.
4. DPF inlet pressure sensor connector/harness.
5. DPF outlet pressure sensor.
6. DPF outlet pressure sensor connector/harness.
7. DPF is contaminated with oil or coolant.
8. DOC failure.
9. Intake manifold or charge air cooler failure.
10. Intake manifold pressure sensor.
11. Turbocharger failure.
12. Fuel doser injector valve leaks.
13. Failed cylinder injectors.
14. DPF failure.
15. Perform a stationary regen.

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