Difficult To Start Normally

Check for vacuum leaks.
Check fuel quality.
Check water temperature sensor circuit. See CODE 22 in BASIC TESTING article in the ENGINE PERFORMANCE Section.
Check idle speed control valve circuit. See IDLE CONTROL SYSTEM in I - SYS/COMP TESTS article in the ENGINE PERFORMANCE Section.
Check EGR system. See CODE 71 in TESTS W/CODES article in the ENGINE PERFORMANCE Section.
Check fuel system circuit. See FUEL SYSTEM CIRCUIT chart in I - SYS/COMP TESTS article in the ENGINE PERFORMANCE Section.
Check ignition coil.
Check distributor and spark plugs.
Check engine compression.
Check ignition signal circuit. See IGNITION CHECKS in BASIC TESTING article in the ENGINE PERFORMANCE Section.
Check injector circuit. See INJECTOR CIRCUIT chart in I - SYS/COMP TESTS article in the ENGINE PERFORMANCE Section.
Check cold start injector circuit. See COLD START INJECTOR CIRCUIT chart in I - SYS/COMP TESTS article in the ENGINE PERFORMANCE Section.
Check intake air temperature sensor circuit. See CODE 24 in TESTS W/CODES article in the ENGINE PERFORMANCE Section.
Check valve timing and timing belt.
Check ECU.