Not every injector-related fault begins at the injector.
The communication path between control modules can also influence system behavior.
Electronic Control Depends on Data Exchange
Modern diesel systems may rely on communication between:
- ECU;
- sensors;
- control modules;
- diagnostic equipment.
Communication Problems May Create Secondary Symptoms
Possible effects include:
- missing data;
- incorrect control decisions;
- intermittent operation.
Conclusion
Electronic communication should remain part of the diagnostic boundary when injection faults appear inconsistent.
