correct with ignition
switch to ON position?
(See
FUEL LINE
PRESSURE
INSPECTION [LF]
.)
High:
Replace the fuel pump unit.
(See
FUEL PUMP UNIT
REMOVAL/INSTALLATION
[LF]
.)
11
Visually inspect for fuel
leakage at fuel injector
O-ring and fuel line.
Service if necessary.
Is fuel line pressure
held after ignition
switch is turned off?
(See
FUEL LINE
PRESSURE
INSPECTION [LF]
.)
Yes
Go to the next step.
No
Inspect the fuel injector.
If the fuel injector is normal,
replace the fuel pump unit.
(See
FUEL PUMP UNIT
REMOVAL/INSTALLATION
[LF]
.)
12
Connect a pressure
gauge to A/C low and
high pressure side
lines.Turn the A/C on
and measure low side
and high side
pressure.Are pressures
within specifications?
(See
REFRIGERANT
PRESSURE
CHECK
.)
NOTE:
The following
test is for
engine stall with
the A/C on. If
other symptom
exists, go to the
next step.
Yes
Go to the next step.
No
If the A/C is always on, go to
symptom troubleshooting
"No.24 A/C is always on or A/C
compressor runs continuously".
(See
NO.24 A/C IS ALWAYS
ON OR A/C COMPRESSOR
RUNS CONTINUOUSLY
[LF]
.)
For other symptoms, inspect the
following:
Refrigerant charging
amount
Condenser fan operation
13
Inspect cruise control
NOTE:
The following
test should be
performed for
symptom with
cruise control
ON. If other
symptoms exist,
go to the next
step.
Yes
Go to the next step.
No
Repair or replace the
malfunctioning part.
2007 Mazda MX-5 Miata Sport
2007 ENGINE PERFORMANCE Symptom Troubleshooting - MX-5 Miata
Microsoft
Thursday, July 09, 2009 2:42:10 PM
Page 66
© 2005 Mitchell Repair Information Company, LLC.