Symptom Checks

Check the following items:

• Check idle speed. See IDLE SPEED in ADJUSTMENTS - 2.0L article.
• Check PCV system. See CIRCUIT TEST HG in TESTS W/CODES - 2.0L article.
• Check ignition system. See CIRCUIT TEST JG in TESTS W/CODES - 2.0L article.
• Check fuel delivery system. See CIRCUIT TEST HC in TESTS W/CODES - 2.0L article.
• Check Evaporative Emission (EVAP) system. See CIRCUIT TEST HV in TESTS W/CODES - 2.0L article.
• Check exhaust system for restriction. See step 7) of CIRCUIT TEST HF in TESTS W/CODES - 2.0L article.
• Check air intake system. See CIRCUIT TEST HU in TESTS W/CODES - 2.0L article.
• Check engine compression. Check engine mechanical condition. Check intake manifold gasket, camshaft and valves.
• Ensure engine operates at normal operating temperature.
• Check EGR system. See SYSTEM/COMPONENT TESTS - 2.0L article.
• Check engine compression. Check engine mechanical condition. Check intake manifold gasket, camshaft and valves.