13. FUEL INJECTION SYSTEM
13-8
G-DINK 300i
TROUBLESHOOTING
Engine fail to start Backfiring or misfiring during acceleration
• Intake manifold air leak • Ignition system malfunction
• Fuel contaminated/deteriorated
• Pinched or clogged fuel hose
• Faulty fuel pump
• Clogged fuel filter, throttle body
• Sticking fuel injector needle
• Faulty fuel pump operating system
• Carbon deposit stayed on the fuel injector
• Spark plug dirty
• Fuel pressure incorrect
Engine stall, hard to start, rough idling Poor performance (drive ability) and poor
• Intake air leak fuel economy
• Fuel contaminated/deteriorated • Pinched or clogged fuel hose
• Pinched or clogged fuel hose • Faulty injector
• Idle speed fail to adjust
• Fail to perform PTS/ISC reset
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