Mazda RX8 - Page 39

NOTE:
• The following test is for
stall concerns with the
A/C on. If other symptoms
exist, go to the next step.
Connect pressure gauges to the
A/C low and high pressure side
lines.
Turn the A/C on and measure the
low side and high side pressures.
Are pressures within the
specifications?
(See REFRIGERANT
PRESSURE CHECK .)
No
If the A/C is always on, go to the 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
.)
For other symptoms, inspect the following:
• Refrigerant charging amount
• Condenser fan operation
Yes
Inspect if purge solenoid valve is stuck
open.
Inspect evaporative emission control system.
24
Disconnect the vacuum hose
between the purge solenoid valve
and intake manifold at the quick
release connector.
Plug the opening end of the
vacuum hose.
Start the engine.
Is the engine stall now
eliminated?
No Go to the next step.
Yes Go to the next step.
25
Perform the SSV operation
inspection.
(See Secondary Shutter Valve
(SSV) Operation Inspection .)
Does the SSV operate properly?
No
Repair or replace the malfunctioning parts,
according to the SSV operation inspection
results.
26 Yes Go to the next step.
(w) RX8-Engine Troubleshooting
Page 39