Engine Controls - Tests W/Codes - EEC-IV (2.0L): Introduction

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Perform all steps in BASIC TESTING - 2.0L article. If no fault is found while performing BASIC DIAGNOSTIC PROCEDURES, proceed with self-diagnostics. If no diagnostic trouble codes or only pass codes (system functioning properly) are found during self-diagnostics, proceed to the TESTS W/O CODES - EEC-IV (2.0L) article for diagnosis by symptoms.