What does Cummins fault code 2374 mean?

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

EGRCummins Diesel ECM

Fault Code 2374

Exhaust gas recirculation valve, cooler, and flow faults.

Call Now Request a Quote Create Service Ticket

System

Cummins EGR

Cummins ECM Service

Diagnostic Overview

Cummins fault code 2374 generally relates to EGR system pressure, temperature, or flow rationality. The ECM may see an EGR-related signal that does not agree with engine speed, load, intake pressure, or exhaust conditions. Common causes include a failed EGR temperature or pressure sensor, carbon restriction, plugged sensor ports, leaking EGR valve, restricted cooler, or wiring issue. A proper diagnosis should include live data comparison, sensor circuit checks, and inspection of the EGR cooler, valve, and passages.

⏵ Truck down? Fleet stalled?

Fault Code 2374? Get An Honest Diagnosis.

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

Create Service Ticket

Internal Linking

Related EGR Fault Codes

View All EGR Codes

1844

Cummins fault code 1844 commonly relates to EGR system flow, EGR valve response, or air-handling performance.

1896

Cummins fault code 1896 generally indicates an EGR flow or EGR valve control problem.

2272

Cummins fault code 2272 is commonly associated with EGR valve position, EGR actuator response, or EGR flow rationality.

2274

Cummins fault code 2274 typically points to EGR flow performance or EGR differential pressure rationality.

2961

Cummins fault code 2961 is commonly tied to EGR valve or EGR flow performance.

View All EGR Codes →