Mazda CX 7. Manual — part 99

SYMPTOM TROUBLESHOOTING [L3 WITH TC]

01-03–93

01-03

Evaporative system test procedure

1. Select the EVAP system test from the Toolbox on the M-MDS display and follow the instructions.
2. Verify that all of the following PIDs are within the specifications at the pre-test confirmation screen.

Note

• To successfully perform this procedure, all PIDs must be within the following specifications before

proceeding to the next step.

• The PCM will cancel the EVAP system test if the B+ PID value falls lower than 11.0 V during the test.

Specification

3. Start the engine.
4. Drive the vehicle or let the engine idle more than 20 min.
5. Turn the ignition switch off, then turn it to the ON position again (Key On Engine Off).
6. Press the tick icon to start the test.
7. Verify that no DTCs are present after the completion of the test.

• If any test result is indicated with red, diagnose the problem using the following DTC troubleshooting procedure

or component inspection procedure.

• If any DTCs are detected, diagnose the problem using the appropriate DTC troubleshooting procedure.

EVAP system leak inspection using leak tester

1. Perform the following SST (EVAP System Tester 134-01049) self-test:

Note

• If the tester does not work correctly during the self-test, refer to the tester operators manual for a more

detailed self-test procedure.

(1) Verify that the control valve on the panel is in

the HOLD position, then open the nitrogen
bottle valve.

(2) Connect the vehicle interface hose (part of

the SST) to the SELF TEST port located on
the control panel. Hand tighten the fitting. (Do
not overtighten.)

(3) Turn the control valve to the TEST position.
(4) The gauge should read 331— 381 mm {13—

15 in} of water.

• If the gauge is not reading in this range,

adjust the pressure by turning the black
knob on the low pressure regulator at the
nitrogen bottle.

(5) Turn the control valve to the HOLD position.
(6) Verify that the gauge holds pressure and that

the flow meter reads no flow.

• If there is no drop in pressure and no flow,

the tester passes the self-test.

• If the gauge leaks down, refer to the

operators manual.

PID

PID Range

BARO

72.2 kPa {543 mmHg, 21.3 inHg} or more

FLI

15— 85%

IAT

5— 45

°C {41— 113 °F}

B+

11.0 V or more

VALVE "TEST AND HOLD"

PRESSURE
GAUGE

SELF-TEST
PORT

.020 TEST
PORT

.040 TEST
PORT

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SYMPTOM TROUBLESHOOTING [L3 WITH TC]

01-03–94

2. Connect the SST to the vehicle.

(1) Verify that the control valve on the panel is in the HOLD position then open the nitrogen bottle valve.
(2) Remove the fuel-filler cap from the vehicle.

• If the fuel-filler cap is not a MAZDA part or equivalent, replace it.

(3) Connect the receiver assembly (SST: 134-

01059) to the vehicle cap test hose assembly
(part of SST) and the fuel-filler cap from the
vehicle.

(4) Connect the cap adaptor (SST: 134-01058) to

the vehicle cap test hose assembly (part of
the SST) and to the fuel-filler neck.

(5) Connect the vehicle interface hose (part of

the SST) to the center fitting of the vehicle cap
test hose assembly (part of the SST).

3. Connect the M-MDS to the DLC-2.
4. Turn the ignition switch to the ON position (Engine

off).

5. Request the PCM on-board device control (Mode

08) using the M-MDS to close the change-over valve (COV) in the EVAP system leak detection pump.

Note

• The COV is closed for 10 min unless any of the following actions are performed:

— The engine is started.

— The ignition switch is turned off.

6. Make sure the control valve on the 134-01049 is in the HOLD position and that the valve on the cylinder of

nitrogen gas is open.

7. Turn the control valve to the open position and let the system fill. You should note a drop in the gauge pressure

along with the flow meter being pegged at maximum flow for several minutes depending on how full or empty
the fuel tank is, and how long it takes to completely fill and pressurize the evaporative emissions system hoses.

8. If the gauge and the flow meter do not settle to a measurable level after 2— 3 min, then refer to the Mazda

Workshop Manual to verify that the cut or vent valve is properly closed.

9. Verify the pressure gauge and flow meter reading to determine if there is an evaporative emissions leak:

NO EVAPORATIVE LEAK:

• The flow meter registers “zero flow” and the pressure gauge returns to the pre-set pressure of 356 mm {14

in} of water (H2O).

EVAPORATIVE LEAK:

• The pressure does not return to the preset level of 356 mm {14 in} of water (H2O) when measuring the

flow. See “SETTING LEAK STANDARD FOR TESTING” (.020 to. 040 inch H2O) of the Evaporative
Emissions Tester operators manual (134-01067).

Note

• Turn the control valve to the HOLD position then disconnect the SST.

End Of Sie

CAP ADAPTER

VEHICLE CAP
TEST HOSE
ASSEMBLY

RECEIVER
ASSEMBLY

VEHICLE
INTERFACE
HOSE

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MECHANICAL [L3 WITH TC]

01-10–1

01-10

2007 Mazda CX-7 Workshop Manual (1871–1U–06B)

Revised 9/2006 (Ref. No. R115/06)

01-10

MECHANICAL [L3 WITH TC]

MECHANICAL LOCATION INDEX

[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-10–2

DRIVE BELT INSPECTION

[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-10–3

DRIVE BELT REMOVAL/INSTALLATION

[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-10–3

DRIVE BELT AUTO TENSIONER

INSPECTION[L3 WITH TC] . . . . . . . . . 01-10–4

VALVE CLEARANCE

INSPECTION/ADJUSTMENT
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-10–4

Valve Clearance

Inspection . . . . . . . . . . . . . . . . . . . . . 01-10–4

Valve Clearance

Adjustment . . . . . . . . . . . . . . . . . . . . . 01-10–5

COMPRESSION INSPECTION

[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-10–9

TIMING CHAIN

REMOVAL/INSTALLATION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-10–10

Cylinder Head Cover

Removal Note . . . . . . . . . . . . . . . . . . 01-10–12

Crankshaft Pulley Lock Bolt

Removal Note . . . . . . . . . . . . . . . . . . 01-10–12

No.3 Engine Mount

Removal Note . . . . . . . . . . . . . . . . . . 01-10–12

Front Oil Seal Removal Note . . . . . . . . 01-10–14
Chain Tensioner Removal Note . . . . . . 01-10–14
Oil Pump Driven Sprocket

Removal Note . . . . . . . . . . . . . . . . . . 01-10–15

Oil Pump Drive Sprocket

Installation Note . . . . . . . . . . . . . . . . 01-10–15

Oil Pump Driven Sprocket

Installation Note . . . . . . . . . . . . . . . . 01-10–16

Timing Chain Installation Note . . . . . . . 01-10–16
Front Oil Seal Installation Note . . . . . . 01-10–16
Engine Front Cover

Installation Note . . . . . . . . . . . . . . . . . 01-10–17

No.3 Engine Mount

Installation Note . . . . . . . . . . . . . . . . 01-10–17

Crankshaft Pulley Lock

Bolt Installation Note . . . . . . . . . . . . . 01-10–18

Cylinder Head Cover

Installation Note . . . . . . . . . . . . . . . . 01-10–19

CYLINDER HEAD GASKET

REPLACEMENT[L3 WITH TC] . . . . . . . 01-10–20

Camshaft Removal Note . . . . . . . . . . . . 01-10–22
Cylinder Head Removal Note . . . . . . . . 01-10–22
Cylinder Head Installation Note. . . . . . . 01-10–22
Camshaft Installation Note . . . . . . . . . . 01-10–23

FRONT OIL SEAL REPLACEMENT

[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-10–23

Crankshaft Pulley Lock Bolt

Removal Note. . . . . . . . . . . . . . . . . . . 01-10–24

Front Oil Seal Removal Note. . . . . . . . . 01-10–25
Front Oil Seal Installation Note . . . . . . . 01-10–25
Crankshaft Pulley Lock

Bolt Installation Note . . . . . . . . . . . . . . 01-10–25

REAR OIL SEAL REPLACEMENT

[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-10–26

Rear Oil Seal Installation Note . . . . . . . 01-10–27

VARIABLE VALVE TIMING ACTUATOR

INSPECTION[L3 WITH TC] . . . . . . . . . . 01-10–28

VARIABLE VALVE TIMING ACTUATOR

REMOVAL/INSTALLATION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-10–28

OIL CONTROL VALVE (OCV)

REMOVAL/INSTALLATION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-10–29

OIL CONTROL VALVE (OCV)

INSPECTION[L3 WITH TC]. . . . . . . . . . 01-10–29

Coil Resistance Inspection . . . . . . . . . . 01-10–29
Spool Valve Operation Inspection . . . . . 01-10–29

ENGINE REMOVAL/INSTALLATION

[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-10–31

No.1 Engine Mount

Removal Note . . . . . . . . . . . . . . . . . . . 01-10–33

No.3 Engine Mount Rubber, No.4

Engine Mount Bracket
Removal Note . . . . . . . . . . . . . . . . . . . 01-10–33

Engine Mount Installation Note . . . . . . . 01-10–33

ENGINE DISASSEMBLY/ASSEMBLY

[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-10–35

ENGINE TUNE-UP[L3 WITH TC] . . . . . . . 01-10–35

Engine Tune-up Preparation . . . . . . . . . 01-10–35
Ignition Timing Inspection . . . . . . . . . . . 01-10–36
Idle Speed Inspection . . . . . . . . . . . . . . 01-10–36
Idle Mixture Inspection . . . . . . . . . . . . . 01-10–36

End of Toc

WM: ENGINE COMPLETE

MECHANICAL [L3 WITH TC]

01-10–2

2007 Mazda CX-7 Workshop Manual (1871–1U–06B)

Revised 9/2006 (Ref. No. R115/06)

MECHANICAL LOCATION INDEX[L3 WITH TC]

id011039800100

9

8

7

5

4

3

1

2

6

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1

Drive belt
(See01-10-3 DRIVE BELT INSPECTION[L3 WITH
TC].)
(See01-10-3 DRIVE BELT REMOVAL/
INSTALLATION[L3 WITH TC].)
(See01-10-4 DRIVE BELT AUTO TENSIONER
INSPECTION[L3 WITH TC].)

2

Tappet
(See01-10-4 VALVE CLEARANCE INSPECTION/
ADJUSTMENT[L3 WITH TC].)

3

Engine
(See01-10-9 COMPRESSION INSPECTION[L3
WITH TC].)
(See01-10-31 ENGINE REMOVAL/
INSTALLATION[L3 WITH TC].)
(See01-10-35 ENGINE DISASSEMBLY/
ASSEMBLY[L3 WITH TC].)
(See01-10-35 ENGINE TUNE-UP[L3 WITH TC].)

4

Timing chain
(See01-10-10 TIMING CHAIN REMOVAL/
INSTALLATION[L3 WITH TC].)

5

Cylinder head gasket
(See01-10-20 CYLINDER HEAD GASKET
REPLACEMENT[L3 WITH TC].)

6

Front oil seal
(See01-10-23 FRONT OIL SEAL
REPLACEMENT[L3 WITH TC].)

7

Rear oil seal
(See01-10-26 REAR OIL SEAL REPLACEMENT[L3
WITH TC].)

8

OCV
(See01-10-29 OIL CONTROL VALVE (OCV)
REMOVAL/INSTALLATION[L3 WITH TC].)
(See01-10-29 OIL CONTROL VALVE (OCV)
INSPECTION[L3 WITH TC].)

9

Variable valve timing actuator

(See 01-10-28 VARIABLE VALVE TIMING

ACTUATOR INSPECTION[L3 WITH TC].)

(See01-10-28 VARIABLE VALVE TIMING
ACTUATOR REMOVAL/INSTALLATION[L3 WITH
TC].)