Mazda Mazda6 Workshop Manual Supplement page 349

STEP INSPECTION
13 Inspect if turbocharger turbine wheel is
damaged, cracked or interfering with housing on
vehicle.
Note
• Inspect all fins on each turbine wheel.
Is there any problem?
14 Is any engine oil found inside turbocharger
turbine housing?
15 Is any engine oil found inside turbocharger
compressor hosing?
16 Perform EGR system inspection.
Is EGR system okay?
17 Inspect idle speed.
(See F2–34 IDLE SPEED
Is idle speed correct?
18 Inspect adjustment of accelerator position
sensor and idle switch.
(See F2–72 ACCELERATOR POSITION
SENSOR INSPECTION)
(See F2–70 IDLE SWITCH
Are accelerator position sensor and idle switch
adjusted correctly?
19 Visually inspect CKP sensor and teeth of pulse
wheel.
Are CKP sensor and teeth of pulse wheel okay?
20 Measure gap between CKP sensor and teeth of
pulse wheel.
Specification
1.5—2.5 mm {0.059—0.098 in}
Is gap within specification?
21 Visually inspect CMP sensor and teeth of pulse
wheel.
Are CMP sensor and teeth of pulse wheel okay?
22 Inspect fuel pressure sensor.
(See F2–79 FUEL PRESSURE SENSOR
INSPECTION)
Is fuel pressure okay?
23 Inspect suction control valve.
(See F2–54 SUCTION CONTROL VALVE
INSPECTION)
Is suction control valve okay?
TROUBLESHOOTING
RESULTS
Yes
No
Yes
No
Yes
No
Yes
No
Yes
INSPECTION)
No
Yes
No
INSPECTION)
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
ACTION
Replace turbocharger.
Go to next step.
Excessive amount of oil is found:
Replace turbocharger.
Small amount of oil is found:
Wipe oil off of vehicle, then go to next step.
Go to next step.
Wipe oil off of vehicle and install all removed parts in
Step 10. Then, go to next step.
Turbocharger is okay.
Install all parts removed in Step10.
Then, go to next step.
Go to next step.
Repair or replace malfunctioning part according to
EGR system operation results.
Go to next step.
Repair or replace malfunctioning part according to idle
speed inspection results.
Go to next step.
Adjust accelerator position sensor and idle switch
correctly.
(See F2–73 ACCELERATOR POSITION SENSOR
ADJUSTMENT)
(See F2–71 IDLE SWITCH ADJUSTMENT)
Go to next step.
Replace malfunctioning parts.
Go to next step.
Adjust CKP sensor position.
Inspect following PIDs:
(See F2–65 PCM INSPECTION)
• ECT
• IAT
• MAF
• MAP
• RPM
If PID value is not as specified, repair or replace
malfunctioning parts.
If PID value is okay, go to next step.
Replace malfunctioning parts.
Go to next step.
Replace common rail.
Go to next step.
Repair supply pump.
(See F2–54 SUPPLY PUMP INSPECTION)
F2–197
F2