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Engine Controls - Basic Testing - Diesel (VIN K & M): Summary

If no faults were found while performing BASIC DIAGNOSTIC PROCEDURES, proceed to appropriate TESTS W/CODES - EEC-IV (DIESEL) article in the ENGINE PERFORMANCE section. If no hard codes are found in self-diagnostics or if vehicle does not have a self-diagnostic system, proceed to appropriate TESTS W/O CODES article in the ENGINE PERFORMANCE section below for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.) or intermittent diagnostic procedures.