SPN 2630 FMI 2 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 names an engine air-temperature plausibility fault that reports an out-of-range high-box condition on the EPA07 calibration of the Detroit DD-Series engine.
SPN 2630 FMI 2 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 | EPA07 / GHG14 |
| Source | TruckFaultCodes.com (copyright 2017) |
| Pages | 1 |
| File size | 0.12 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)
- Engine air temperature plausibility fault
- Out of range condition (high box)
- Emissions calibration coverage (EPA07 / GHG14)
This is a short, single-page entry that names the plausibility fault and its out-of-range high-box condition for the engine air temperature signal on the EPA07 calibration. Because the extracted text is brief, the page is best used together with the matching EPA10 plausibility document and Original Equipment Manufacturer literature, which carry the full monitored-parameter table, enabling conditions and the sensor inspection sequence for the intake manifold and charge air cooler outlet temperature circuits on this engine family.
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 EPA07 / 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 FMI 2 manual
Technicians confirming an EPA07 engine air-temperature plausibility event on a Detroit DD-Series engine will use this page to verify the exact code and calibration before opening the full procedure.
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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