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

POSSIBLE CAUSES DESCRIPTIONS

5	ENGINE STALLS - AFTER START/AT IDLE
DESCRIPTION	Engine stops unexpectedly.
POSSIBLE CAUSE	A/C system improper operation Air leakage from intake-air system Purge solenoid valve malfunction Improper operation of electronic throttle control system EGR valve malfunction Vacuum leakage Engine overheating Low engine compression Ignition system malfunction Poor fuel quality PCV valve malfunction Intake-air system restriction Exhaust system and/or three-way catalytic converter (TWC) restriction or clogging Electrical connector disconnection Open or short circuit in the fuel pump (low-side) body or related wiring harness Fuel pump resister or related circuit malfunction No battery power supply to PCM or poor ground Inadequate fuel pressure (high or low pressure side) Fuel pressure sensor or related circuit malfunction Spill valve control solenoid valve malfunction (built-in high pressure fuel pump) Relief valve malfunction (built-in delivery pipe) Fuel pump (low-side) body mechanical malfunction Fuel leakage Fuel line restriction Fuel filter clogging Incorrect fuel injection timing High pressure fuel pump malfunction Fuel injector malfunction Ignition coil malfunction Improper air/fuel mixture ratio control No signal from CKP sensor due to sensor, related wiring harness or wrong installation Erratic signal from CMP sensor Front and/or rear HO2S sensor or related circuit malfunction ECT sensor or related circuit malfunction Accelerator positions sensor or related circuit malfunction MAF sensor or related circuit malfunction Improper valve timing Improper operation variable valve timing control system Immobilizer system and/or circuit malfunction Injector driver module or related circuit 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 injury 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 the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the 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 improper operation
Air leakage from intake-air system
Purge solenoid valve malfunction
Improper operation of electronic throttle control system
EGR valve malfunction
Vacuum leakage
Engine overheating
Low engine compression
Ignition system malfunction
Poor fuel quality
PCV valve malfunction
Intake-air system restriction
Exhaust system and/or three-way catalytic converter (TWC) restriction or clogging
Electrical connector disconnection
Open or short circuit in the fuel pump (low-side) body or related wiring harness
Fuel pump resister or related circuit malfunction
No battery power supply to PCM or poor ground
Inadequate fuel pressure (high or low pressure side)
Fuel pressure sensor or related circuit malfunction
Spill valve control solenoid valve malfunction (built-in high pressure fuel pump)
Relief valve malfunction (built-in delivery pipe)
Fuel pump (low-side) body mechanical malfunction
Fuel leakage
Fuel line restriction
Fuel filter clogging
Incorrect fuel injection timing
High pressure fuel pump malfunction
Fuel injector malfunction
Ignition coil malfunction
Improper air/fuel mixture ratio control
No signal from CKP sensor due to sensor, related wiring harness or wrong installation
Erratic signal from CMP sensor
Front and/or rear HO2S sensor or related circuit malfunction
ECT sensor or related circuit malfunction
Accelerator positions sensor or related circuit malfunction
MAF sensor or related circuit malfunction
Improper valve timing
Improper operation variable valve timing control system
Immobilizer system and/or circuit malfunction
Injector driver module or related circuit 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 injury 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 the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material.