Mazda MX-5 Miata Sport 2007 Manual page 1955

2007 ENGINE PERFORMANCE Symptom Troubleshooting - MX-5 Miata
DIAGNOSTIC PROCEDURE
HARD TO START/LONG CRANK/ERRATIC START/ERRATIC CRANK DIAGNOSTIC
PROCEDURE TABLE
STEP
1
2
2007 Mazda MX-5 Miata Sport
INSPECTION
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?
Connect the M-MDS or
equivalent to the DLC-
(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.
RESULTS
Yes Go to the next step.
No Service if necessary.
Repeat Step 1.
Yes DTC is displayed:
Go to the appropriate DTC
ACTION