Difficult To Start Cold

Check water temperature sensor circuit. See CODE 22 in TESTS W/CODES article in the ENGINE PERFORMANCE Section.
Check starter signal circuit. See CODE 43 in TESTS W/CODES article in the ENGINE PERFORMANCE Section.
Check for vacuum leaks.
Check fuel quality.
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 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 fuel system circuit. See FUEL SYSTEM CIRCUIT chart in I - SYS/COMP TESTS 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 ignition coil.
Check distributor and spark plugs.
Check ECU.