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Symptom #5 - Engine stalls - after start / at idle

Description

• Engine stops unexpectedly.

Possible Causes

• Air leakage from intake-air system parts
• Improper operation of idle air control valve
• Crankshaft sensor circuit malfunction
• Camshaft sensor circuit malfunction
• Spark leakage from ignition coil
• PCV valve malfunction
• Restriction in exhaust system
• Open or short circuit in fuel pump and related harness
• Improper fuel pressure
• Fuel leakage from injector
• Improper A/C system operation
• Purge solenoid valve malfunction
• EGR valve malfunction
• EGR solenoid malfunction
• Low engine compression
• Vacuum leakage
• Fuel pump control relay and resistor
• Poor fuel quality
• Air filter restriction
• Electrical connector disconnection
• No battery power supply to ECU or poor ground
• Fuel pump mechanical malfunction
• Clogged injector