Diagnostic Aids

To prevent mis-diagnosis, perform powertrain diagnostic system check. See POWERTRAIN DIAGNOSTIC SYSTEM CHECK under DIAGNOSTIC SYSTEM CHECKS in appropriate SELF-DIAGNOSTICS article. Unless engine enters clear flood mode at first indication of a flooding condition, a no-start condition may result. Be sure to check spark plugs for signs of fouling. Inspect for leaks in the intake air ducting between the mass air flow sensor and throttle body. If no problems are found after performing test steps, perform diagnosis for hard start condition. See appropriate TROUBLE SHOOTING - NO CODES article.