Symptom Checks

Check the following items:

• Perform QUICK TEST. See the TESTS W/CODES - EEC-IV article. If code is present, use appropriate CIRCUIT TEST.
• Check fuel delivery system. See FUEL SYSTEM in the SYSTEM/COMPONENT TESTS article.
• Check ignition system. See IGNITION SYSTEMS in the SYSTEM/COMPONENT TESTS article.
• Check for restricted exhaust system.
• Ensure engine operates at normal operating temperature.
• Check EGR system. See the SYSTEM/COMPONENT TESTS article.
• Ensure transmission operates properly.
• Check secondary air injection. See the SYSTEM/COMPONENT TESTS article.
• Check PCV system.
• Check for dragging brakes.
• Check for contaminated Mass Airflow (MAF) sensor.