started.)
(See
PURGE
CONTROL SYSTEM
INSPECTION
.)
Is the purge control
correct?
No
Repair or replace the
malfunctioning part.
14
Perform compression
inspection.
(See
COMPRESSION
INSPECTION [LF]
.)
Is compression correct?
Yes
Visually inspect for deformed
exhaust system part.
No
Repair or replace the
malfunctioning part.
15
When the engine cannot
be started, inspect the
intake-air system for air
leakage.
When the engine can be
started, perform intake
manifold vacuum
inspection.
Is air sucked in from
intake-air system?
Yes
Repair or replace the
malfunctioning part.
No
Go to the next step.
16
Install the fuel pressure
gauge between the fuel
filter and the fuel
distributor.
Short check connector
terminal F/P to body
GND using a jumper
wiring.
Turn the ignition switch
to the ON position
(Engine off).
Is fuel line pressure
correct with the ignition
switch at ON?
(See
FUEL LINE
PRESSURE
INSPECTION [LF]
.)
Yes
Inspect the following PIDs:
ECT
O2S11
O2S12
MAF
(See
PCM INSPECTION
[LF]
.)
Inspect PCM GND condition.
No
Zero or low:
Inspect the fuel pump relay and
fuel pump circuit.
Inspect the fuel line for
clogging.
If there is no malfunction,
replace the fuel pump unit.
(See
FUEL PUMP UNIT
REMOVAL/INSTALLATION
[LF]
.)
High:
Replace the fuel pump unit.
(See
FUEL PUMP UNIT
REMOVAL/INSTALLATION
2007 Mazda MX-5 Miata Sport
2007 ENGINE PERFORMANCE Symptom Troubleshooting - MX-5 Miata
Microsoft
Thursday, July 09, 2009 2:42:11 PM
Page 118
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