Engine Controls - System/Component Tests: Introduction

Before testing separate components or systems, perform procedures in BASIC TESTING article in the ENGINE PERFORMANCE section. Since many computer-controlled and monitored components set a trouble code if they malfunction, also perform procedures in appropriate G - TESTS W/ CODES article in the ENGINE PERFORMANCE section below.

TESTS W/CODES - 4-CYL (for MX-3 1.6L)
TESTS W/CODES - V6 (for MX-3 1.8L)
TESTS W/CODES (for Protege)
TESTS W/CODES (for 323)

NOTE: Testing individual components does not isolate shorts or opens. Perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure. Use ohmmeter to isolate wiring harness shorts or opens.