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SYMPTOM TROUBLESHOOTING [ENGINE CONTROL SYSTEM (ZM)] 01–03A–21 01–03A NO.6 CRANKS NORMALLY BUT WILL NOT START [ZM] A3U010318881W48 Diagnostic procedure 6 Cranks normally but will not start DESCRIPTION • Starter cranks engine at normal speed but engine will not run. • Refer to “ENGINE STALLS” if this symptom appears after engine stall. • Fuel is in tank. • Battery is in normal condition. POSSIBLE CAUSE • No battery power supply to PCM • Air leakage from intake-air system • Open PCM GND or vehicle body GND • Improper operation of IAC valve • EGR valve malfunction • No signal from CKP sensor due to sensor, related wire or incorrect installation • No signal from CMP sensor due to sensor, related wire or incorrect installation • Low engine compression • Vacuum leakage • Spark leakage from high-tension leads • Poor fuel quality • PCV valve malfunction • Air cleaner restriction • Restriction in exhaust system • Disconnected electrical connector • Open or short circuit in fuel pump and related harness • Inadequate fuel pressure • Fuel pump mechanical malfunction • Fuel leakage from injector • Fuel injector clogging • Purge solenoid valve malfunction • Pressure regulator solenoid (PRC) system malfunction Warning •••• Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep •••• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or STEP INSPECTION ACTION 1 • Inspect for following: switch, alarm etc.) — Fuel quality: proper octane, contamination, winter/summer blend — No air leakage from intake-air system components attached to intake manifold: — Ignition wiring • Are all items okay? Yes Go to next step. No Service as necessary. 1712-1U-01G(01-03A).fm 21 ページ 2001年6月29日 金曜日 午後4時45分 |