DerateDetroit Diesel Diesel ECM

SPN 3719 FMI 16

Name: ECM Performance
Address: Fort Lauderdale, FL, 33325, US
Telephone: (888) 768-2447
Price range: $$-$$$

Engine protection and emissions inducement power-limiting faults.

Call Now Request a Quote Create Service Ticket

Active derate — truck is losing power now

System

Detroit Diesel Derate

Detroit Diesel ECM Service

Diagnostic Overview

Detroit SPN 3719 FMI 16 usually indicates DPF soot load is above normal at a moderate severity level. The system is closer to derate than an early warning and may require a parked or service regeneration depending on active codes and soot level. It should be diagnosed before the truck reaches a severe shutdown or speed-limit inducement.

Likely Causes

Moderate DPF soot load, failed regeneration, restricted DPF, faulty differential pressure sensor, plugged tubes, exhaust temperature sensor problem, or excessive soot from EGR, turbo, injector, or air system issues.

What To Check First

Check soot level, regen inhibit status, DPF pressure, exhaust temperature readings, and related engine codes; then follow Detroit procedure for regen or DPF service. Verify final definition in Detroit DiagnosticLink because FMI meaning can vary by engine year, ACM/MCM calibration, and emissions level.

⏵ Truck down? Fleet stalled?

Active Derate? Get Help Right Now.

Send us your fault codes and operational context. Same-day quote, remote diagnostic available, ship-in service nationwide.

Create Service Ticket

Internal Linking

Related Derate Fault Codes

View All Derate Codes

Flash Code 44

Detroit Flash Code 44 is commonly used as a warning or shutdown-related code depending on the DDEC generation and engine configuration.

Flash Code 45

Detroit Flash Code 45 should be handled as an older Detroit/DDEC flash-code style warning that may trigger reduced power or protection logic depending on application.

PID 404

Detroit PID 404 is commonly tied to an older parameter identifier used in DDEC-era diagnostics and may appear in derate-related fault lists.

SPN 1001

Detroit SPN 1001 may appear as a derate-related status or protection input depending on calibration.

SPN 1001 FMI 0

Detroit SPN 1001 FMI 0 indicates the monitored SPN 1001 condition is above the most severe threshold or outside the normal operating limit, depending on the exact Detroit definition.

SPN 1001 FMI 8

Detroit SPN 1001 FMI 8 indicates an abnormal frequency, pulse width, or update-rate type fault for the SPN 1001 signal.

View All Derate Codes →