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HOMESERVICE MANUALSMAZDA20105 SPORT, 2.3 L, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 333 (SYMPTOM TROUBLESHOOTING (ENGINE CONTROL SYSTEM L3))NO. 5 ENGINE STALLS - AFTER START/AT IDLENOTES
2010 Mazda 5 Sport, 2.3 L, Standard

No. 5 Engine Stalls - After Start/At Idle: Notes

2010 Mazda 5 Sport, 2.3 L, StandardSECTION Notes
WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DESCRIPTION & POSSIBLE CAUSE

5 ENGINE STALLS-AFTER START/AT IDLE
DESCRIPTION 
  • Engine stops unexpectedly.
POSSIBLE CAUSE 
  • A/C system operation is improper
  • Air leakage from intake-air system parts
  • Purge solenoid valve malfunction
  • Improper operation of electronic throttle control system
  • EGR valve malfunction
  • No signal from CKP sensor due to sensor, related wire or wrong installation
  • Vacuum leakage
  • Engine overheating
  • Low engine compression
  • Ignition system malfunction
  • Spark leakage from high-tension leads(1)
  • Poor fuel quality
  • PCV valve malfunction
  • Air cleaner restriction
  • Restriction in exhaust system
  • Electrical connector disconnection
  • Open or short circuit in fuel pump body and related harness
  • No battery power supply to PCM or poor GND
  • Inadequate fuel pressure
  • Fuel pump body mechanical malfunction
  • Fuel leakage from fuel injector
  • Fuel injector clogging
  • Ignition coil malfunction
  • Improper air/fuel mixture ratio control
  • Improper valve timing
  • Improper operation variable valve timing control system
  • Immobilizer system (PATS) and/or circuit malfunction
  • Pressure regulator malfunction
    WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before servicing the fuel system:
    • Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel.
    • Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in the repair information.

      (See BEFORE REPAIR PROCEDURE .)

      (See AFTER REPAIR PROCEDURE .)

    RENDER: 1.0x

    NO RELATED

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    When to See a Mechanic

    Stop DIY work and contact a certified mechanic immediately if any of the following apply:

    • • You smell fuel, burning insulation, or see smoke.
    • • Brakes feel soft, pull hard to one side, or make grinding noises.
    • • The engine overheats, stalls repeatedly, or misfires under load.
    • • You are missing required tools, torque specs, or safe lifting equipment.
    • • You are not confident in the next step or safety outcome.