If simulation function of M-MDS or equivalent is not used:
FUEL INJECTOR OPERATION INSPECTION TABLE
OPERATION
INSPECTION
.)
Does the main relay
work properly?
malfunctioning parts.
3
Inspect the fuel injector
for suspected cylinder.
(See
FUEL
INJECTOR
INSPECTION [LF]
.)
Is the fuel injector
okay?
Yes
Inspect the following for
suspected cylinder:
Fuel injector power and/or
GND systems related
harness and connectors.
No
Replace the fuel injector.
(See
FUEL INJECTOR
REMOVAL/INSTALLATION
[LF]
.)
4
Perform KOER self-test
function using M-MDS
or equivalent.
(See
KOEO/KOER
SELF TEST [LF]
.)
Are DTC P0201,
P0202, P0203 and/or
P0204 present?
Yes
Go to appropriate DTC test.
(See
DTC TABLE [LF]
.)
No
Go to the next step.
5
Inspect the fuel injector
for suspected cylinder.
(See
FUEL
INJECTOR
INSPECTION [LF]
.)
Is the fuel injector
okay?
Yes
Inspect the following for
suspected cylinder:
PCM terminals (pulled-
out pins, corrosion)
Fuel injector terminals
(pulled-out pins,
corrosion)
No
Replace the fuel injector.
(See
FUEL INJECTOR
REMOVAL/INSTALLATION
[LF]
.)
STEP
INSPECTION
RESULTS
ACTION
1
While cranking the
engine, inspect for fuel
injector operation sound
at each cylinder using a
soundscope.
Is operation sound heard?
Yes
Fuel injector operation is
normal.
No
All cylinders not heard:
Go to the next step.
Some cylinders not
heard:
2007 Mazda MX-5 Miata Sport
2007 ENGINE PERFORMANCE Symptom Troubleshooting - MX-5 Miata
Microsoft
Thursday, July 09, 2009 2:42:11 PM
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