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Section 8 (Engine Controls - Tests W/Codes): Introduction

WARNING: This page is about a different car, the 1995 Volkswagen Passat. However, it is still accessible from the selected car via links, so may be relevant.

If no faults were found while performing preliminary inspection procedures, proceed with self-diagnostics. If no fault codes or only pass codes are present after entering self-diagnostics, proceed to the H - TESTS W/O CODES article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.).

NOTE: Scan Tester (VAG 1551) is recommended by manufacturer, however, generic scan testers may be used.
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