SPN 2630 EPA10 is the Detroit DD-Series diagnostic fault code document for the engine air temperature plausibility fault, out of range high box event, published on TruckFaultCodes.com (copyright 2017) and archived as a 1-page PDF in the DiagTechPro library. The document covers an engine air-temperature plausibility fault that flags the intake manifold and charge air cooler outlet temperature as out of range, illuminating the MIL and CEL lamps and applying a 25% derate on this EPA10 calibration.
SPN 2630 EPA10 document details
| Brand | Detroit |
| Model coverage | Detroit DD-Series (DD13, DD15 and DD16), EPA 2007 and later |
| System / group | DD Series (EPA 2007-Current) / DTCs |
| Fault code (SPN) | 2630 |
| Failure mode (FMI) | 2 |
| Emissions calibration | EPA10 / GHG14 |
| Source | TruckFaultCodes.com (copyright 2017) |
| Pages | 1 |
| File size | 0.22 MB |
| Format | |
| Language | English |
The page records the official identifiers so a technician can confirm the exact code and calibration against the diesel diagnostic tool before starting any repair.
Document table of contents
- Fault code identification (SPN 2630 / FMI 2)
- Plausibility fault out of range (high box)
- Monitored parameter and enabling conditions
- Dash lamps and engine reaction (MIL, CEL, derate 25%)
- Steps 1 to 4 – Sensor inspection and replacement
- Intake manifold air temperature sensor removal reference
The monitored parameters are the intake manifold and charge air cooler outlet temperatures, evaluated within a defined engine-speed, torque, coolant and ambient window. The four-step procedure connects the diesel diagnostic tool, repairs any other EGR-system faults first, then disconnects both the charge air outlet and intake manifold temperature sensors. The technician inspects both harness connectors for bent, spread or corroded pins, repairs any pin damage found and replaces the intake manifold temperature sensor using the referenced removal routine.
Applicable truck models
This document applies to Detroit DD-Series diesel engines in the EPA 2007-and-later range, typically the DD13, DD15 and DD16 as covered by the EPA10 / GHG14 calibration shown on the file. Confirm the engine calibration and connector layout for your chassis on the official Detroit engine site before ordering parts.
Who needs this SPN 2630 EPA10 manual
Diesel technicians reviewing an air-temperature plausibility event on an EPA10 Detroit DD-Series engine will use this page to confirm which sensor and harness to test first.
The complete 1-page PDF is available in the DiagTechPro manuals library, where a free account is required to download it.
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