No.6 Cranks Normally But Will Not Start: Notes

CRANKS NORMALLY BUT WILL NOT START - DESCRIPTION AND POSSIBLE CAUSE

6	Cranks normally but will not start
DESCRIPTION	Starter cranks engine at normal speed but engine will not run. Refer to symptom troubleshooting in NO.5 ENGINE STALLS-AFTER START/AT IDLE if this symptom appears after engine stall. Fuel in tank. Battery is in normal condition.
POSSIBLE CAUSE	No battery power supply to PCM Air leakage from intake-air system Open PCM GND or vehicle body GND Improper operation of IAC valve EGR valve malfunction No signal from CKP sensor due to sensor or related wire No signal from CMP sensor due to sensor or related wire Low engine compression Vacuum leakage Erratic signal to ignition coil Poor fuel quality PCV valve malfunction Air cleaner restriction Restriction in exhaust system Disconnected electrical connector Open or short circuit in fuel pump and related harness Inadequate fuel pressure Fuel pump mechanical malfunction Fuel leakage from injector Fuel injector clogging Purge solenoid valve malfunction Immobilizer system and/or 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 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 .)

Cranks normally but will not start

DESCRIPTION

Starter cranks engine at normal speed but engine will not run.
Refer to symptom troubleshooting in NO.5 ENGINE STALLS-AFTER START/AT IDLE if this symptom appears after engine stall.
Fuel in tank.
Battery is in normal condition.

POSSIBLE CAUSE

No battery power supply to PCM
Air leakage from intake-air system
Open PCM GND or vehicle body GND
Improper operation of IAC valve
EGR valve malfunction
No signal from CKP sensor due to sensor or related wire
No signal from CMP sensor due to sensor or related wire
Low engine compression
Vacuum leakage
Erratic signal to ignition coil
Poor fuel quality
PCV valve malfunction
Air cleaner restriction
Restriction in exhaust system
Disconnected electrical connector
Open or short circuit in fuel pump and related harness
Inadequate fuel pressure
Fuel pump mechanical malfunction
Fuel leakage from injector
Fuel injector clogging
Purge solenoid valve malfunction
Immobilizer system and/or 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 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 .)