Diesel Diagnostics Technician: Engine ECU Specialist

Ecoparts

Long Beach, Northern (CA, KY)

Hybrid

USD 34,000 - 48,000

Full time

9 days ago

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Job summary

Ecology Auto Parts, Inc. seeks a Diagnostic Diesel Technician to join the Fleet & Maintenance team in Long Beach, CA. You will diagnose engine issues using Cummins Insite and Paccar DAVIE4, perform electrical and sensor diagnostics, and drive root-cause analysis for efficient repairs.

The role reports to the Shop Manager and supports operations at Long Beach or Santa Fe Springs locations. A strong background in electronics and diesel diagnostics is required, with safety and OSHA compliance as a

Qualifications

Minimum 3 years of diesel mechanic experience with advanced troubleshooting abilities.
Proven experience with Cummins and Paccar engine diagnostics, software use, and repairs.
High School Diploma or equivalent (required); technical certification in Diesel Technology (preferred).
Valid Driver’s License and eligibility to work in the U.S.
Strong proficiency in electronic diagnostic tools, laptops, and OEM software systems.

Responsibilities

Diagnose and repair engine issues using OEM diagnostic platforms (Cummins Insite, Paccar DAVIE4, etc.).
Conduct electrical, emission system, and sensor diagnostics across a variety of heavy‑duty diesel trucks.
Interpret fault codes and performance data, update ECU software, and calibrate sensors as needed.
Perform advanced preventative maintenance and major component overhauls when necessary.
Troubleshoot aftertreatment systems, DEF issues, DPF regens, and other emissions‑related concerns.
Document all repair activities in fleet maintenance software systems with accuracy and clarity.
Assist in training junior mechanics on electronic diagnostics and standard repair techniques.
Provide input on fleet condition and recommend strategies to reduce downtime and improve efficiency.
Maintain cleanliness, organization, and safety of assigned workspaces in accordance with OSHA and company standards.