No. 6 Cranks Normally But Will Not Start: Notes

POSSIBLE CAUSES DESCRIPTIONS

6	CRANKS NORMALLY BUT NOT START
DESCRIPTION	Starter cranks engine at normal speed but engine will not run. Refer to symptom troubleshooting "NO. 5 ENGINE STALLS-AFTER START/AT IDLE " if this symptom appears after the engine stalls. Fuel is in tank. Battery is in normal condition.
POSSIBLE CAUSE	Air leakage from intake-air system Open PCM ground or vehicle body ground Improper operation of electronic throttle control system EGR valve malfunction Low engine compression Engine overheating Vacuum leakage Ignition system malfunction Poor fuel quality PCV valve malfunction Intake-air system restriction Improper air/fuel mixture ratio control No signal from CKP sensor due to sensor, related wire or incorrect installation No signal from CMP sensor due to sensor, related wire or incorrect installation Front and/or rear HO2S sensor or related circuit malfunction ECT sensor or related circuit malfunction Accelerator position sensor or related circuit malfunction MAF sensor or related circuit malfunction High pressure fuel pump malfunction Exhaust system or three-way catalytic converter (TWC) malfunction Disconnected electrical connector Open or short in fuel pump (low-side) body and related harness Inadequate fuel pressure (high or low pressure side) Fuel pressure sensor or related circuit malfunction Relief valve malfunction (built-in high pressure fuel pump) Fuel line clogging or restriction Incorrect fuel injection timing Fuel pump resistor or control relay malfunction Fuel pump (low-side) mechanical malfunction Fuel leakage Fuel injector malfunction Purge solenoid valve malfunction Spark plug malfunction Ignition coil malfunction Improper valve timing Improper variable valve timing control system operation Immobilizer system or related 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.

CRANKS NORMALLY BUT NOT START

DESCRIPTION

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

POSSIBLE CAUSE

Air leakage from intake-air system
Open PCM ground or vehicle body ground
Improper operation of electronic throttle control system
EGR valve malfunction
Low engine compression
Engine overheating
Vacuum leakage
Ignition system malfunction
Poor fuel quality
PCV valve malfunction
Intake-air system restriction
Improper air/fuel mixture ratio control
No signal from CKP sensor due to sensor, related wire or incorrect installation
No signal from CMP sensor due to sensor, related wire or incorrect installation
Front and/or rear HO2S sensor or related circuit malfunction
ECT sensor or related circuit malfunction
Accelerator position sensor or related circuit malfunction
MAF sensor or related circuit malfunction
High pressure fuel pump malfunction
Exhaust system or three-way catalytic converter (TWC) malfunction
Disconnected electrical connector
Open or short in fuel pump (low-side) body and related harness
Inadequate fuel pressure (high or low pressure side)
Fuel pressure sensor or related circuit malfunction
Relief valve malfunction (built-in high pressure fuel pump)
Fuel line clogging or restriction
Incorrect fuel injection timing
Fuel pump resistor or control relay malfunction
Fuel pump (low-side) mechanical malfunction
Fuel leakage
Fuel injector malfunction
Purge solenoid valve malfunction
Spark plug malfunction
Ignition coil malfunction
Improper valve timing
Improper variable valve timing control system operation
Immobilizer system or related 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.