Engine Will Not Start

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

• Check ignition system. See BASIC DIAGNOSTIC PROCEDURES article.
• Check fuel pressure. See BASIC DIAGNOSTIC PROCEDURES article.
• Check fuel pump (PGM-FI) relay. See BASIC DIAGNOSTIC PROCEDURES article.
• Check CKP/TDC/CYP sensor (if equipped). See DTC P0335, P0336, P1336, P1337, P1361, P1362, P1366, P1367, P1381 or P1382 in appropriate SELF-DIAGNOSTICS article.
• Check for contaminated fuel.
• Check A/T gear position signal. See SYSTEM & COMPONENT TESTING article.
• Test PCM power and ground circuits. See POWER DISTRIBUTION and GROUND DISTRIBUTION article in WIRING DIAGRAMS.
• Other possible causes are engine compression, intake air system leakage, engine locked up, timing belt, starting system, overheating and battery. On 3.5RL, engine will not start if PCM has been replaced and immobilizer code has not been rewritten to it using a Honda PGM tester.