Resources
Technical knowledge for technicians, students, and curious vehicle and equipment owners. Diagrams, ECU references, and in-depth guides on automotive, electrical, electronics, and solar topics.
Resource sections
Wiring Diagrams
Vehicle wiring diagrams by make and model
Annotated wiring diagrams for the most-serviced vehicles on Nigerian roads. Lighting, charging, body electronics, engine management. With workshop notes on the gotchas service manuals omit.
Browse vehiclesFuse Box Diagrams
Panel layouts + common-blow fuses
Fuse panel locations and the specific fuses we see blown most often, with the reason behind each. Saves an hour every time a customer arrives with "something electrical not working".
Browse layoutsECU Solutions
Fault patterns + verified procedures
Documented ECU diagnostics from the workshop floor. Each entry: symptoms, ranked root causes, step-by-step procedure, tools required, and verified-by initials.
Browse knowledge baseGuides
Long-form technical articles
Long-form educational articles on automotive systems, ECU diagnostics, electrical theory, and solar fundamentals.
Browse guidesLatest from the workshop.
How ECU Diagnostics Actually Works
A working guide to what your mechanic is actually doing when they "plug in the scanner". And why a fault code is only the beginning of a diagnosis.
Solar System Sizing for Nigerian Homes. A Practical Walkthrough
What it actually takes to figure out the right solar system size for your home. Without overbuying or under-sizing yourself into nightly disappointment.
Understanding Modern Engine Management. Sensors, Signals, Decisions
How a modern engine actually controls itself. And why understanding the sensor-to-ECU-to-actuator loop changes how you diagnose problems.
Try Ask Fiitech for a preliminary indication.
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