Detroit DD13 EPA07 (2007-09) Fault Code: SPN 3242 FMI 2 (MCM) Diesel Oxidation Catalyst Inlet Temperature Sensor Circuit Plausibility Error
NOTE: If any other codes are active, fix those first.
PROBABLE CAUSES:1. Check all connectors/harnesses upstream of the MCM (DOC inlet temp sensor, ATD harness 10-pin connector, VIH 13-pin connector, MCM 120-pin connector).2. DOC inlet temperature sensor.3. DOC inlet temperature sensor connector/harness.4. DPF inlet pressure sensor.5. DPF inlet pressure sensor connector/harness.6. DPF outlet pressure sensor.7. DPF outlet pressure sensor connector/harness.8. DPF plugged or has contamination (coolant, oil).9. DOC failure.10. Charge air cooler failure.11. Intake manifold pressure sensor.12. Intake manifold pressure sensor connector/harness.13. Exhaust system leaks.14. Turbocharger failure.15. Fuel pressure out of spec (70-80 PSI).16. Fuel doser injector valve failure.17. DPF failure.18. Perform a stationary regen.