Mazda RX-8 Manual page 795

The following test should be performed
•
for A/C. Go to the next step for vehicles
without A/C.
Turn the blower motor switch off.
•
Is magnetic clutch still on?
•
INSPECT GENERATOR CONTROL SYSTEM
OPERATION
6
Apply the electrical load at idle.
•
Is the engine speed increased?
•
INSPECT AIR CLEANER ELEMENT
Remove the air cleaner element with
•
7
engine running.
Is the engine speed increased?
•
INSPECT THROTTLE BODY PASSAGE
Remove the throttle body.
•
8
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
Is throttle body clogged?
•
INSPECT ENGINE COMPRESSION
Inspect the engine compression.
•
9
(See COMPRESSION INSPECTION .)
Is there any malfunction?
•
INSPECT METERING OIL PUMP
Inspect the metering oil pump.
•
10
(See METERING OIL PUMP
INSPECTION .)
Is there any malfunction?
•
11 INSPECT ENGINE OIL CONDITION
No Go to the next step.
Yes Go to the next step.
Repair or replace the wiring harness for a
No possible short to power supply, then go to Step
9.
Clean or replace the air cleaner element, then
go to Step 14.
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
No Go to the next step.
Clean the throttle body passage or replace the
throttle body, then go to Step 14.
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
No Go to the next step.
Yes Go to the next step.
No Go to Step 14.
Repair or replace the malfunctioning part
according to the inspection results.
Yes
Overhaul or replace the engine.
Then go to Step 15.
No Go to the next step.
Yes Go to the next step.
(w) Engine Diagnostics & Control
Page 232