Engine Will Not Start

Ensure steps for spark and fuel testing in BASIC TESTING article have been performed.

• Check ignition system. See BASIC TESTING article.
• Check fuel pressure. See BASIC TESTING article.
• Check PGM-FI main relay. See BASIC TESTING article.
• Check Crankshaft Position (CKP), Top Dead Center (TDC), Cylinder Position (CYP) and/or Crankshaft Speed Fluctuation (CKF) sensors. See appropriate Diagnostic Trouble Code (DTC) in TESTS W/CODES article.
• Check for contaminated fuel.
• Check A/T gear position signal (A/T) or clutch switch signal (M/T). See SYSTEM/COMPONENT TESTS article.
• Test PCM power and ground circuits. See MALFUNCTION INDICATOR LIGHT (MIL) in TESTS W/CODES article.
• Other possible causes of ENGINE WILL NOT START are engine compression, intake air system leakage, engine locked up, timing belt, starting system, overheating and battery.