DIAGNOSTIC PROCEDURE
HARD TO START/LONG CRANK/ERRATIC START/ERRATIC CRANK DIAGNOSTIC
PROCEDURE TABLE
(See BEFORE SERVICE
PRECAUTION [LF] .)
(See AFTER SERVICE PRECAUTION
[LF] .)
CAUTION:
Disconnecting/connecting quick
release connector without cleaning it
may 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.
STEP
INSPECTION
RESULTS
ACTION
1
Inspect for the
following:
Vacuum leakage
Proper fuel
quality (such as
proper octane,
contamination,
winter/summer
blend)
Loose bands on
intake-air system
Cracks on intake-
air system parts
Intake-air system
restriction (such
as air cleaner
element, fresh air
duct.)
Are all items normal?
Yes
Go to the next step.
No
Service if necessary.
Repeat Step 1.
2
Connect the M-MDS or
equivalent to the DLC-
Yes
DTC is displayed:
Go to the appropriate DTC
2007 Mazda MX-5 Miata Sport
2007 ENGINE PERFORMANCE Symptom Troubleshooting - MX-5 Miata
Microsoft
Thursday, July 09, 2009 2:42:09 PM
Page 22
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