No. 6 Cranks Normally But Will Not Start: 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

CRANKS NORMALLY BUT WILL NOT START

DESCRIPTION

Starter cranks engine at normal speed but engine will not run.
Refer to symptom troubleshooting "NO. 5 ENGINE STALLS " if this symptom appears after engine stall.
Fuel is 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 electronic throttle control system
EGR valve malfunction
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
Low engine compression
Engine overheating
Vacuum leakage
Ignition system malfunction
Spark leakage from high-tension leads⁽¹⁾
Improper air/fuel mixture ratio control
Poor fuel quality
PCV valve malfunction
Air cleaner restriction
Restriction in exhaust system
Disconnected electrical connector
Open or short circuit in fuel pump body and related harness
Inadequate fuel pressure
Fuel pump mechanical malfunction
Fuel leakage from injector
Fuel injector is clogged.
Purge solenoid valve malfunction
Spark plug malfunction
Ignition coil malfunction
Improper variable valve timing control system operation
Improper valve timing
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 .)
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.

⁽¹⁾	Except for California emission regulation applicable ATX model