Mazda MX-5 Miata Sport 2007, Manual

Page: 1969 / 2244

6
CRANKS NORMALLY BUT WILL NOT
START
DESCRIPTION

The starter cranks engine at normal speed but
the engine will not run.

Refer to symptom troubleshooting NO.5
ENGINE STALLS-AFTER START/AT
IDLE [LF]
if this symptom appears after
engine stall.

Fuel is in tank.

Battery is in normal condition.

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

Erratic signal to ignition coil

Improper air/fuel mixture ratio control

Poor fuel quality

PCV valve malfunction

Restriction in intake-air system

Restriction in exhaust system

Disconnected electrical connector

Open or short circuit in fuel pump body and
related wiring 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
2007 Mazda MX-5 Miata Sport
2007 ENGINE PERFORMANCE Symptom Troubleshooting - MX-5 Miata
Microsoft
Thursday, July 09, 2009 2:42:09 PM Page 36 © 2005 Mitchell Repair Information Company, LLC.