correct with ignition
switch to ON position?
(See
FUEL LINE
PRESSURE
INSPECTION [LF]
.)
Replace the fuel pump unit.
(See
FUEL PUMP UNIT
REMOVAL/INSTALLATION
[LF]
.)
11
Inspect variable intake
air control operation.
(See
VARIABLE
INTAKE AIR
CONTROL
OPERATION
INSPECTION
.)
Does VIS function
properly?
Yes
Go to the next step.
No
Repair or replace the
malfunctioning part.
12
Connect pressure gauge
to the A/C low and high
side pressure lines.Turn
the A/C on and measure
low side and high side
pressures.Are pressures
within specifications?
(See
REFRIGERANT
PRESSURE
CHECK
.)
NOTE:
The following
test is for
engine stalling
with the A/C on
concern. If other
symptoms exist,
go to the next
step.
Yes
Go to the next step.
No
If 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 for A/C cut-off
operation.
(See
A/C Cut-off
Control System
Inspection
.)
Does the A/C cut-off
function properly?
Yes
Go to the next step.
No
Inspect A/C cut-off system
components.
14
Disconnect the vacuum
hose between the purge
solenoid valve and the
intake manifold from
purge solenoid valve
side.
Yes
Inspect if purge solenoid valve
is stuck open mechanically.
Inspect the evaporative emission
control system.
(See
PURGE CONTROL
SYSTEM INSPECTION
.)
2007 Mazda MX-5 Miata Sport
2007 ENGINE PERFORMANCE Symptom Troubleshooting - MX-5 Miata
Microsoft
Thursday, July 09, 2009 2:42:10 PM
Page 73
© 2005 Mitchell Repair Information Company, LLC.