oil pressure MAZDA 6 2002 Suplement User Guide

OUTLINE
D–3
D
Diesel engine
Bold frames: New specifications
Recommended Engine Oil (Diesel Engine)
•The maintenance intervals on the scheduled maintenance table (See GI–8 SCHEDULED MAINTENANCE
TABLE) can only be supported with the use of following oils.
Bold frames: New specifications
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ItemSpecification
New Mazda6
(GG, GY)Current
Mazda 626, 626
Station Wagon
(GF, GW)Current
Mazda MPV
(LW)
MZR-CD (RF Turbo) RF TurboMZR-CD (RF
Turbo)
Lubrication system Force-fed type—
Oil cooler Water-cooled—
Oil pressure
(approximate quantity)
[oil temperature: 100°C {212°F}](kPa {kgf/cm
2, psi})
min [rpm]147 {1.5, 21} [1,000],
343 {3.5, 50} [3,000]—
Oil pumpType Trochoid gear type—Trochoid gear type
Relief pressure
(approximate
quantity)(kPa {kgf/cm
2, psi})
[rpm]580—700
{5.9—7.1,
84.1—101.5}
[3,000]—580—700
{5.9—7.1,
84.1—101.5}
[3,000]
Oil filterTypeFull-flow,
Paper element—Full-flow,
Paper element
Bypass pressure
(approximate
quantity)(kPa kgf/cm
2, psi})78—118
{0.8—1.2,
11.3—17.1} —78—118
{0.8—1.2,
11.3—17.1}
Oil capacity
(approximate
quantity)Total
(dry engine)(L {US qt, lmp qt}) 5.5 {5.8, 4.8} 5.4 {5.7, 4.8} —
Oil replacement (L {US qt, lmp qt}) 4.8 {5.1, 4.2} 4.5 {4.8, 4.0}—
Oil and oil filter
replacement(L {US qt, lmp qt}) 5.0 {5.3 ,4.4} 4.7 {5.0, 4.1} —
ItemSpecification
New Mazda6
(GG, GY)Current
Mazda 626, 626
Station Wagon
(GF, GW)
MZR-CD (RF Turbo) RF Turbo
Engine oil GradeAPI CF CD, CE, CF-4 CD
ACEA B1 or B3 B3 B3 or B4—
Viscosity (SAE) 5W-30 10W-40 5W-30, 10W-30 5W-30, 10W-30
RemarksMazda genuine
Dexelia oil e.g.——

D–4
OUTLINE
STRUCTURAL VIEWA6E330202000203MZR-CD (RF Turbo)
.
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8
7
5
4
3
1
2
6
9
A6E330W001
1 Oil pressure switch
2 Oil filter
3Oil cooler
4Oil pan
5 Oil filter adapter6 Oil pump
7 Oil strainer
8 Turbocharger
9 Vaccum pump

LUBRICATION SYSTEM
D–5
D
LUBRICATION FLOW CHARTA6E333014100202MZR-CD (RF Turbo)
.
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LUBRICATION SYSTEM
98
7
5
4
3
12
10
17
15
16
14
13
11
12
6
18
12
A6E3300W002
1 Oil pan
2 Oil strainer
3 Oil pump
4 Oil cooler
5 Oil filter
6 Main bearing
7 Crankshaft
8 Connecting rod bearing
9 Oil jet valve10 Piston
11 Oil pressure switch
12 Orifice
13 Camshaft
14 Rocker arm shaft
15 Rocker arm, rocker arm bridge
16 Vaccum pump
17 Turbocharger
18 Cylinder head

D–6
OUTLINE, LUBRICATION SYSTEM
SUPPLEMENTAL SERVICE INFORMATIONA6E330202000204•The following changes and/or additions have been made since publication of the Mazda6 Workshop Manual
(1730-1*-02C).
Oil pressure
•Inspection procedure has been adopted. (MZR-CD (RF Turbo) engine model)
Engine oil
•Inspection procedure has been adopted. (MZR-CD (RF Turbo) engine model)
•Replacement procedure has been adopted. (MZR-CD (RF Turbo) engine model)
Oil filter
•Replacement procedure has been adopted. (MZR-CD (RF Turbo) engine model)
Oil cooler
•Removal/Installation procedure has been adopted. (MZR-CD (RF Turbo) engine model)
Oil pan
•Removal/Installation procedure has been adopted. (MZR-CD (RF Turbo) engine model)
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LOCATION INDEXA6E333014100201MZR-CD (RF Turbo)
.
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OUTLINE
LUBRICATION SYSTEM
4
3
1
2
A6E3300W003
1 Oil pressure switch
(See D–7 OIL PRESSURE INSPECTION)
2 Oil filter
(See D–9 OIL FILTER REPLACEMENT)3 Oil cooler
(See D–9 OIL COOLER REMOVAL/
INSTALLATION)
4 Oil pan
(See D–10 OIL PAN REMOVAL/INSTALLATION)

OIL PRESSURE INSPECTION
D–7
D
OIL PRESSURE INSPECTIONA6E331001003201MZR-CD (RF Turbo)
Warning
•Continuous exposure to USED engine oil has caused skin cancer in laboratory mice. Protect your
skin by washing with soap and water immediately after working with engine oil.
•Hot engines and engine oil can cause severe burns. Turn off the engine and wait until it and the
engine oil have cooled.
1. Disconnect the negative battery cable.
2. Remove the under cover.
3. Remove the oil pressure switch.
4. Screw the SST into the oil pressure switch
installation hole.
5. Warm up the engine to normal operating
temperature.
6. Run the engine at the specified speed, and note
the gauge readings.
•If the pressure is not as specified, inspect for
the cause and repair or replace if necessary.
Oil pressure (approximate quantity) [oil
temperature: 100°C {212°F}]
147 kPa {1.5 kgf/cm
2, 21psi} min [1,000 rpm]
343 kPa {3.5 kgf/cm2, 50 psi} min [3,000 rpm]
Note
•The oil pressure can vary with oil viscosity and temperature.
7. Stop the engine and wait until it is cool.
8. Remove the SST.
Caution
•Any sealant stuck at the end of the oil pressure switch can cause operation malfunction of the oil
pressure switch.
Be sure there is no sealant at the end of the oil pressure switch.
9. Apply silicone sealant to the oil pressure switch
threads as shown.
10. Install the oil pressure switch.
Tightening torque
12—17 N·m {1.2—1.8 kgf·m, 9—13 ft·lbf}
11. Install the intake manifold bracket.
12. Start the engine and inspect for oil leakage.
•If the oil leaks, specify the faulty part and
repair or replace it.
13. Install the under cover.
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OIL PRESSURE INSPECTION
49 0187 280A
A6E3310W100
1.0—2.0 {0.04—0.07}
4.0—6.0 {0.16—0.23}
mm {in}
SEALANTSEALANT
A6E3310W101

F1–2
OUTLINE
OUTLINE OF CONSTRUCTIONA6E390218881201•The fuel and emission control systems are essentially carried over from the current Mazda6 (GG), except for
the following features. (See Mazda6 Training Manual 3359-1*-02C.)
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FEATURESA6E390218881202System simplification
•Controller area network has been adopted with TCM communication (4WD).
TCM adoption
•DTC for CAN (TCM communication) has been adopted.
Modifications to match the vehicle characteristics
•The idle speed has been modified.
•Fuel pump (transfer) has been adopted.
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SPECIFICATIONSA6E390218881203
*1: Without the BARO sensor
*2: With the BARO sensor
Bold frames: New specifications
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OUTLINE
Item 2WD 4WD
Air cleaner element Type Paper element (oil permeated)
IAC valve Type Duty control
Fuel injectorType Hi-ohmic
Type of fuel delivery Top-feed
Type of drive Voltage
Pressure regulatorRegulating pressure
(kPa {kgf/cm
2, psi})440 {4.5, 64}
Fuel tankCapacity
(L {US qt, lmp qt})64 {68, 56} 62 {65, 54}
Fuel SpecificationUnleaded
(RON 90*
1/95*2 or above)Unleaded (RON 95 or above)
Catalyst Type TWC (monolythic)
EGR control Type Stepping motor type
Evaporative emission control
systemType Canister type
PCV system Type Closed type

OUTLINE
F1–3
F1
CONTROL SYSTEM DIAGRAM (4WD)A6E390218881204
.
* : Equipped for L3 engine modelEnd Of Sie
9
8
7
54
3
10
19
18
17
15
16
14
13
11
12
20
29
28
27
25
26
24
23
21
22
30
3938
3735
33
36
31
32
40
6
1
2
3441
A6E39022000
1PCM
2 Ignition coil
3 Generator
4* VAD shutter valve
5 Air cleaner
6 MAF sensor
7* VAD shutter valve actuator
8* VAD control solenoid valve
9* Vacuum chamber
10* VAD check valve (one-way)
11 IAC valve
12 Purge solenoid valve
13 TP sensor
14 MAP sensor
15* VIS control solenoid valve
16 Variable tumble control solenoid valve
17* VIS shutter valve actuator
18* VIS shutter valve
19 VTCS shutter valve actuator
20 VTCS shutter valve
21 Fuel injector22* OCV
23 CMP sensor
24 EGR valve
25 Knock sensor
26 ECT sensor
27 PCV valve
28 CKP sensor
29 HO2S (front)
30 HO2S (rear)
31 Charcoal canister
32 Check valve (two-way)
33 Pressure regulator
34 Fuel filter (high-pressure)
35 Fuel pump
36 Fuel filter (low-pressure)
37 Fuel tank
38 Rollover valve
39 Pulsation damper
40 Fuel pump (transfer)
41 To PCM

F1–6
OUTLINE
.
1AA
1Q
1Z
1AC
1K
1C1D 4M4R 4N4K 4H4E
4T 4C4U 1AD1B 1A 2AB4X
39
38
37
35
36
33
40
45
46
44
43
41
42
34
48
47
A6E39022002
33 Generator
34 Refrigerant pressure switch (middle)
35 PSP switch
36 Blower motor
37 Refrigerant pressure switch (high and low)
38 A/C switch
39 Brake switch
40 Brake light41 Ignition coil
42 Generator
43 Purge solenoid valve
44 VAD control solenoid valve
45 EGR valve
46 Variable tumble control solenoid valve
47 VIS control solenoid valve
48 OCV

F1–8
OUTLINE
.
15 Fuel injector No.2
16 Fuel injector No.3
17 Fuel injector No.4
18 IAC valve
19 Oxygen sensor heater (front)
20 Oxygen sensor heater (rear)
21 A/C relay22 Cooling fan relay
23 Cooling fan relay
24 Cooling fan relay
25 Cooling fan relay
26 Fuel pump relay
27 Ignition switch
28 Main relay
1AA
1Q
1Z
1AC
1K
1C1D 4M4R 4N4K 4H4E
4T 4C4U 1AD1B 1A 2AB4X
39
38
37
35
36
33
31
32
40
44
43
41
42
34
29
30
A6E39022004
29 Generator
30 Refrigerant pressure switch (middle)
31 PSP switch
32 Blower motor
33 Refrigerant pressure switch (high and low)
34 A/C switch
35 Brake switch
36 Brake light37 Ignition coil
38 Generator
39 Purge solenoid valve
40 VAD control solenoid valve
41 EGR valve
42 Variable tumble control solenoid valve
43 VIS control solenoid valve
44 OCV

F1–14
CONTROL SYSTEM
OUTLINEA6E394018880201•The control system is essentially carried over from the current Mazda6 (GG), except for the following. (See
Mazda6 Training Manual 3359-1*-02C.)
Vehicle Adoption
4WD ATX model
•TCM has been adopted. Due to this the PCM terminal of ATX device has been replaced to TCM. The ATX
device information which is needed by the fuel and emission control systems is communicated to the PCM by
the controller area network (CAN).
Unleaded (RON 90 or above) model
•BARO sensor has been eliminated. Due to this the BARO factor for purge control has been eliminated.
Input Device
×:Applicable
—: Not applicable
*
1: For MTX model
*2: With Immobilizer system
CONTROL SYSTEM
Item SignalMazda6 (GG, GY)
Remark for new model
4WD ATX Unleaded
(RON 90 or
above)Current
model
MAF/IAT sensor MAF and IAT×Same as current model
TP sensor TP×Same as current model
MAP sensor MAP×Same as current model
ECT sensor ECT×Same as current model
CMP sensorCylinder
identification×Same as current model
CKP sensor Engine revolution×Same as current model
Knock sensor Knocking×Same as current model
HO2S (Front, Rear)Oxygen
concentration×Same as current model
BARO sensor BARO×—×Same as current model
Neutral switch*
1Load/no load
distinction×Same as current model
Clutch switch*
1Load/no load
distinction×Same as current model
Brake switchBrake pedal
condition×Same as current model
PSP switchP/S oil pump load
condition×Same as current model
VSS Vehicle speed—×—
A/C switch, refrigerant
pressure switch (high,
low pressure)A/C operational×Same as current model
Refrigerant pressure
switch (middle
pressure)A/C compressor load×—×Same as current model
Battery Battery voltage×Same as current model
Generation voltage
(Generator terminal P)Generation voltage×Same as current model
Immobilizer unit*
2Immobilizer system
communication×—×Same as current model