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

POSSIBLE CAUSES DESCRIPTION

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 or related wire Vacuum leakage Low engine compression Erratic signal to ignition coil 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 Immobilizer system (PATS) and/or circuit malfunction Ignition coil malfunction Improper air/fuel ratio control Improper valve timing Improper operation of variable valve timing control system. Pressure regulator malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: 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 this manual. (See BEFORE REPAIR PROCEDURE ). (See AFTER REPAIR PROCEDURE ). CAUTION: Disconnecting/connecting quick release connector without cleaning it may possibly cause damage to fuel pipe and quick release connector. Always clean quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material.

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 or related wire
Vacuum leakage
Low engine compression
Erratic signal to ignition coil
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
Immobilizer system (PATS) and/or circuit malfunction
Ignition coil malfunction
Improper air/fuel ratio control
Improper valve timing
Improper operation of variable valve timing control system.
Pressure regulator malfunction
WARNING:
- The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services:
  - 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 this manual.
    (See BEFORE REPAIR PROCEDURE ).
    
    (See AFTER REPAIR PROCEDURE ).
CAUTION:
- Disconnecting/connecting quick release connector without cleaning it may possibly cause damage to fuel pipe and quick release connector. Always clean quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material.