Mazda CX-9 Grand Touring 2008, Руководство пользователя

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VSS PID:
Inspect for open circuit of VSS and related
wiring harness intermittently.
5
Visually inspect the CKP sensor and teeth
of crankshaft pulley.
Are CKP sensor and teeth of crankshaft
pulley normal?
Yes Go to the next step.
No Replace the malfunctioning part.
6
Inspect the spark plug conditions.
Is spark plug wet, covered with carbon or
grayish white?
Yes
Spark plug is wet or covered with
carbon:
Inspect for fuel leakage from fuel injector.
Spark plug is grayish white:
Inspect the fuel injector for clogging.
No
Install the spark plugs on original
cylinders.
Go to the next step.
7
Remove and shake the PCV valve.
Does the PCV valve rattle?
Yes Go to the next step.
No Replace the PCV valve.
8
Perform the electronic throttle control
system operation inspection.
(See ENGINE CONTROL SYSTEM
OPERATION INSPECTION [MZI-
3.7] .)
Does the electronic throttle control system
function properly?
Yes Go to the next step.
No
Repair or replace the malfunctioning part
according to electronic throttle system
operation inspection results.
9
Visually inspect deformed exhaust system
part.
Is there any deformed exhaust system part?
Yes Replace the suspected part.
No Go to the next step.
10
Install fuel pressure gauge between the fuel
pipe and fuel distributor.
Short check connector terminal F/P to body
GND using a jumper wiring.
Turn the ignition switch to the ON
position.
Is fuel line pressure correct with ignition
switch to ON position?
(See FUEL LINE PRESSURE
INSPECTION [MZI-3.7] .)
Yes Go to the next step.
No
Zero or low:
Inspect the fuel pump relay and fuel pump
circuit.
Inspect the fuel line for clogging.
If there is no malfunction, replace the fuel
pump unit.
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION [MZI-
3.7] .)
High:
Replace the fuel pump unit.
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION [MZI-
3.7] .)
11
Visually inspect for fuel leakage at fuel
injector O-ring and fuel line.
Service if necessary.
Is fuel line pressure held after ignition
Yes Go to the next step.
Inspect the fuel injector.
If the fuel injector is normal, replace the
fuel pump unit.
2008 Mazda CX-9 Grand Touring
2008 ENGINE Symptom Troubleshooting (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:10:05 AM Page 54 © 2005 Mitchell Repair Information Company, LLC.