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. Also, engine will not start if PCM has been replaced and immobilizer code has not been rewritten to new PCM using a Honda PGM Tester.