NO.6 CRANKS NORMALLY BUT WILL NOT START [MZI-3.7]
NO.6 CRANKS NORMALLY BUT WILL NOT START (MZI-3.7) DETECTION CONDITIONS AND
POSSIBLE CAUSES
6
CRANKS NORMALLY BUT WILL NOT START
DESCRIPTION
z
The starter cranks engine at normal speed but the engine will not run.
z
Refer to symptom troubleshooting "
NO.5 ENGINE STALLS
" if this symptom
appears after engine stall.
z
Fuel is in tank.
z
Battery is in normal condition.
POSSIBLE
CAUSE
z
No battery power supply to PCM
z
Air leakage from intake-air system
z
Open PCM GND or vehicle body GND
z
Improper operation of electronic throttle control system
z
No signal from CKP sensor due to sensor, related wire or incorrect installation
z
No signal from CMP sensor due to sensor, related wire or incorrect installation
z
Low engine compression
z
Engine overheating
z
Vacuum leakage
z
Erratic signal to ignition coil
z
Improper air/fuel mixture ratio control
z
Poor fuel quality
z
PCV valve malfunction
z
Restriction in intake-air system
z
Restriction in exhaust system
z
Disconnected electrical connector
z
Open or short circuit in fuel pump body and related wiring harness
z
Inadequate fuel pressure
z
Fuel pump mechanical malfunction
z
Fuel leakage from injector
z
Fuel injector is clogged.
z
Purge solenoid valve malfunction
z
Spark plug malfunction
z
Ignition coil malfunction
z
Improper variable valve timing control system operation
z
Improper valve timing
z
Immobilizer system and/or circuit malfunction
z
Immobilizer system operating properly. (Ignition key is not registered.)
2008 Mazda CX-9 Grand Touring
2008 ENGINE Symptom Troubleshooting (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:10:05 AM
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