2002 MAZDA 6 engine oil

TROUBLESHOOTING
F1–61
F1
End Of Sie
X: Applicable
Possible factor
Troubleshooting itemIAT sensor and related circuit malfunction
Barometric pressure sensor malfunction
Neutral or clutch switch and related circuit
malfunction (MTX)
MAF sensor and related circuit malfunction
Knock sensor and related circuit malfunction
TP sensor and related circuit malfunction
TP sensor misadjustment (including looseness)
P/S pressure switch and related circuit
malfunction
Improper refrigerant charging amount
A/C relay (A/C control signal circuit malfunction
A/C compressor magnetic clutch malfunction
Condenser fan system malfunction
Improper load signal input
Clutch slippage
ATX related parts malfunction
VSS and related circuit malfunction
Improper ATF level
Brake dragging
Loose parts
Improper balance of wheels and tires
Drive line malfunction
Suspension malfunction
PATS operating (if equipped)
1 Melting of main or other fuses2 MIL illuminates x x x x x x x x3 Will not crankx4 Hard to start/long crank/erratic
start/erratic crankx
5 Engine stalls. After start/at idle x x x x6 Cranks normally but will not startx7 Slow return to idle8 Engine runs rough/rolling idle x x x x x x9 Fast idle/runs onx10 Low idle/stalls during deceleration x x x x x xEngine stalls/quits.Acceleration/cruisex x xx xx xxxEngine runs rough. Acceleration/cruisex x xx xx xxxMissesAcceleration/cruisex xx xx xxxBuck/jerk Acceleration/cruise
/decelerationx xx xx xxx
Hesitation/stumble Acceleration x x x x x x x x x
11
Surges Acceleration/cruise x x x x x x x x
12 Lack/loss of power Acceleration/cruise x x x x x x x x13 Knocking/pingingAcceleration/cruise x x x14 Poor fuel economy x x x x x15 Emission compliance x16 High oil consumption/leakage17 Cooling system
concernsOverheating x x x
18 Cooling system
concernsRuns cold x
19 Exhaust smoke20 Fuel odor (in engine compartment)21 Engine noisex22 Vibration concerns (engine)xxxx23 A/C does not work sufficiently. x x x24 A/C is always on or A/C compressorruns continuously.xx25 A/C is not cut off under WOT conditions x x26 Exhaust sulfur smell27 Constant voltage x x x x x x28 Spark plug condition x x29 ATX concernsUpshift/downshift/e
ngagementSee Section K, TROUBLESHOOTING
A6E39802004

TROUBLESHOOTING
F1–63
F1
End Of Sie
4 Is strong blue spark visible at each disconnected
high-tension lead while cranking engine?Yes Inspect for following:
•Spark plugs malfunction
•CMP sensor is improperly installed.
•Trigger wheel damage on camshaft
•Open or short circuit on CMP sensor
•Open or short circuit between CMP sensor and
PCM terminal 2J or 2M
Repair or replace malfunctioning parts.
If okay, go to next step.
No Inspect following:
•High-tension leads
•Ignition coil and connector
5 Install fuel pressure gauge between fuel pipe
and fuel distributor.
Start engine and run it at idle.
Measure fuel line pressure at idle.
Is fuel line pressure correct at idle?Yes Go to next step.
NoZero or low:
Inspect for clogged fuel line.
If okay, replace fuel pump unit
High:
Replace fuel pump unit.
6 Inspect for VTCS operation.
Does VTCS work properly?Yes Go to next step.
No Repair or replace malfunctioning parts.
7Note
•The following test should be performed for
vehicles with variable valve timing control
system. Go to next step for vehicles
without variable valve timing control
system.
Inspect for variable valve timing control system
operation.
Does variable valve timing control system work
properly?Yes Go to next step.
No Repair or replace malfunctioning parts.
8Note
•The following test should be performed for
vehicles with VIS. Go to next step for
vehicles without VIS.
Inspect for VIS operation.
Does VIS work properly?Yes Go to next step.
No Repair or replace malfunctioning parts.
9 Remove and shake PCV valve.
Does PCV valve rattle?Yes Go to next step.
No Replace PCV valve.
10 Inspect for restriction in the exhaust system.
Is there any restriction?Yes Inspect exhaust system.
No Go to next step.
11 Inspect for contaminated MAF sensor.
Is there any contamination?Yes Go to next step.
No Inspect for cause.
12 Inspect MAF sensor for contamination.
Is there any contamination?Yes Replace MAF sensor.
No Go to Step 14. (2WD)
Go to next step. (4WD)
13 Inspect electrically controlled 4WD system
operation.
Is operation of electrically controlled 4WD
system okay?Yes Go to next step.
No Repair or replace malfunctioning parts.
14 Is engine compression correct? Yes Inspect valve timing.
No Inspect for cause.
15 Verify test results.
•If okay, return to diagnostic index to service any additional symptoms.
•If malfunction remains, replace PCM. STEP INSPECTION RESULTS ACTION

F2–2

MASS AIR FLOW (MAF)/INTAKE AIR
TEMPERATURE (IAT) SENSOR
INSPECTION ................................................ F2-74
INTAKE AIR TEMPERATURE (IAT)
SENSOR NO.2 INSPECTION....................... F2-75
ENGINE COOLANT TEMPERATURE (ECT)
SENSOR REMOVAL/INSTALLATION .......... F2-76
ENGINE COOLANT TEMPERATURE (ECT)
SENSOR INSPECTION ................................ F2-76
FUEL TEMPERATURE SENSOR
INSPECTION ................................................ F2-77
BOOST SENSOR INSPECTION ..................... F2-78
FUEL PRESSURE SENSOR INSPECTION .... F2-79
CAMSHAFT POSITION (CMP) SENSOR
REMOVAL/INSTALLATION .......................... F2-80
CAMSHAFT POSITION (CMP) SENSOR
INSPECTION ................................................ F2-80
CRANKSHAFT POSITION (CKP) SENSOR
REMOVAL/INSTALLATION .......................... F2-81
CRANKSHAFT POSITION (CKP) SENSOR
INSPECTION ................................................ F2-82
CALIBRATION RESISTOR INSPECTION ....... F2-83
INJECTOR DRIVER MODULE (IDM)
INSPECTION ................................................ F2-84
ON-BOARD DIAGNOSTIC................................. F2-85
ON-BOARD DIAGNOSTIC TEST .................... F2-85
DTC CONFIRMATION PROCEDURE ............. F2-85
KOEO/KOER SELF-TEST PROCEDURE ....... F2-86
AFTER REPAIR PROCEDURE ....................... F2-86
DTC TABLE ..................................................... F2-87
DTC P0016 ...................................................... F2-88
DTC P0088 ...................................................... F2-89
DTC P0091 ...................................................... F2-90
DTC P0092 ...................................................... F2-92
DTC P0093 ...................................................... F2-94
DTC P0097 ...................................................... F2-95
DTC P0098 ...................................................... F2-97
DTC P0102 ...................................................... F2-99
DTC P0103 .................................................... F2-101
DTC P0107 .................................................... F2-103
DTC P0108 .................................................... F2-105
DTC P0112 .................................................... F2-107
DTC P0113 .................................................... F2-109
DTC P0117 .................................................... F2-111
DTC P0118 .................................................... F2-113
DTC P0121 .................................................... F2-115
DTC P0122 .................................................... F2-116
DTC P0123 .................................................... F2-118
DTC P0182 .................................................... F2-120
DTC P0183 .................................................... F2-122
DTC P0191 .................................................... F2-124
DTC P0192 .................................................... F2-125
DTC P0193 .................................................... F2-127
DTC P0200 .................................................... F2-129
DTC P0221 .................................................... F2-131
DTC P0222 .................................................... F2-132
DTC P0223 .................................................... F2-134
DTC P0300 .................................................... F2-136
DTC P0336 .................................................... F2-137
DTC P0337 .................................................... F2-138
DTC P0341 .................................................... F2-140
DTC P0342 .................................................... F2-141
DTC P0380 .................................................... F2-143
DTC P0504 .................................................... F2-145
DTC P0510 .................................................... F2-148
DTC P0512 .................................................... F2-150
DTC P0564 .................................................... F2-152
DTC P0602 .................................................... F2-154DTC P0606..................................................... F2-155
DTC P0610..................................................... F2-155
DTC P0661..................................................... F2-156
DTC P0662..................................................... F2-158
DTC P0850..................................................... F2-160
DTC P1190..................................................... F2-162
DTC P2228..................................................... F2-164
DTC P2229..................................................... F2-164
TROUBLESHOOTING...................................... F2-165
SYMPTOM DIAGNOSTIC INDEX .................. F2-165
SYMPTOM QUICK DIAGNOSIS CHART ...... F2-167
NO.1 MELTING OF MAIN OR
OTHER FUSES ........................................... F2-173
NO.2 MIL ILLUMINATES ............................... F2-174
NO.3 WILL NOT CRANK ............................... F2-174
NO.4 HARD START/LONG CRANK/ERRATIC
START/ERRATIC CRANK .......................... F2-176
NO.5 ENGINE STALLS-AFTER
START/AT IDLE .......................................... F2-178
NO.6 CRANKS NORMALLY BUT WILL NOT
START ........................................................ F2-181
NO.7 SLOW RETURN TO IDLE .................... F2-184
NO.8 ENGINE RUNS ROUGH/ROLLING
IDLE ............................................................ F2-186
NO.9 FAST IDLE/RUNS ON .......................... F2-189
NO.10 LOW IDLE/STALLS DURING
DECELERATION ........................................ F2-190
NO.11 ENGINE STALLS/QUITS, ENGINE RUNS
ROUGH, MISSES, BUCK/JERK,
HESITATION/STUMBLE, SURGES ........... F2-192
NO.12 LACK/LOSS OF
POWER-ACCELERATION/CRUISE ........... F2-195
NO.13 KNOCKING/PINGING......................... F2-199
NO.14 POOR FUEL ECONOMY.................... F2-202
NO.15 EMISSION COMPLIANCE.................. F2-205
NO.16 HIGH OIL
CONSUMPTION/LEAKAGE ....................... F2-209
NO.17 COOLING SYSTEM
CONCERNS-OVERHEATING .................... F2-210
NO.18 COOLING SYSTEM
CONCERNS-RUNS COLD ......................... F2-212
NO.19 EXCESSIVE BLACK SMOKE ............. F2-213
NO.20 FUEL ODOR
(IN ENGINE COMPARTMENT) .................. F2-216
NO.21 ENGINE NOISE .................................. F2-217
NO.22 VIBRATION CONCERNS (ENGINE) .. F2-220
NO.23 A/C DOES NOT WORK
SUFFICIENTLY ........................................... F2-222
NO.24 A/C ALWAYS ON OR A/C
COMPRESSOR RUNS
CONTINUOUSLY........................................ F2-223
NO.25 A/C DOES NOT CUT OFF UNDER
WIDE OPEN THROTTLE CONDITIONS .... F2-224
NO.26 CONSTANT VOLTAGE ...................... F2-225
INTERMITTENT CONCERN
TROUBLESHOOTING ................................ F2-227
ENGINE CONTROL SYSTEM
OPERATION INSPECTION ........................ F2-229

F2–38
INTAKE-AIR SYSTEM
TURBOCHARGER INSPECTIONA6E401013700201
Note
•If the following problems exist, diagnosis the turbocharger using the following symptom troubleshooting
procedures.
1. Lack of power: perform “NO.12 LACK/LOSS OF POWER”. (See F2–195 NO.12 LACK/LOSS OF POWER-
ACCELERATION/CRUISE.)
2. Oil leak: perform “NO.16 HIGH OIL CONSUMPTION/LEAKAGE”. (See F2–209 NO.16 HIGH OIL
CONSUMPTION/LEAKAGE.)
3. Noise: perform “NO. 21 ENGINE NOISE”. (See F2–217 NO.21 ENGINE NOISE.)
Compressor Wheel Inspection
1. Remove the air pipe between the air cleaner and the turbocharger. (See F2–36 INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION.)
2. Visually inspect the compressor wheel from view A and verify that all fins are free from damage, cracks or
bends.
•If there are damaged fins, cracks or bends, replace the turbocharger.
Note
•To make the inspection easier, set a small
mirror as shown in the figure and use a
penlight.
•If the compressor wheel is interfering with
the compressor housing, it is likely that the
fin edges are cracked, damaged, or bent.
•If the compressor wheel is damaged, check
the following before replacing the
turbocharger to avoid reoccurrence of the
problem.
—Foreign material in intake air/exhaust
system.
—Oil pipe clogging.
MIRROR
A
A6E40102009

FUEL SYSTEM
F2–49
F2
(2) Apply a slight amount of clean engine oil to
the sealing surface of the fuel pump unit.
(3) Align the fuel pipe on the fuel pump unit and
quick release connector so that the tabs of the
retainer are correctly fitted into the quick
release connector. Push the quick release
connector straight into the retainer until a click
is heard.
(4) Lightly pull and push the quick release
connector a few times by hand and verify that
it can move 2.0—3.0 mm {0.08—0.11 in} and
it is connected securely.
•If the quick release connector does not
move at all, verify that O-ring is not
damaged of that is has not slipped, and reconnect the quick release connector.
2. When the retainer is removed, perform the following procedure.
End Of Sie
FUEL TANK INSPECTIONA6E401242110202
Caution
•Disconnecting/connecting the quick release connector without cleaning it may possibly cause
damage to the fuel pipe and quick release connector. Always clean the quick release connector
joint area before disconnecting/connecting using a cloth or soft brush, and make sure that it is
free of foreign material.
Note
•This inspection is for two rollover valves and check valve (two-way) integrated in the fuel tank.
1. Remove the fuel tank with the fuel gauge sender unit. (See F2–45 FUEL TANK REMOVAL/INSTALLATION.)
2. Plug the fuel pipe of the fuel gauge sender unit.
3. Plug port C.
4. Connect the pump to port B.
5. Level the fuel tank.
6. Apply pressure of +2.0 kpa {+34 mmHg, +1.3
inHg} to port B.
(1) Verify there is airflow from port A.
•If there is no airflow, replace the fuel tank.
7. Apply pressure of –5.9 kPa {–44 mmHg, –1.7
inHg} to port B.
•If there is no vacuum, replace the fuel tank.
•If there is vacuum, turn the fuel tank
upside-down and proceed to next step.
8. Apply pressure of +2.0 kPa {+15 mmHg, +0.6
inHg} to port B.
(1) Verify there is no airflow from port A.
•If there is airflow, replace the fuel tank.
End Of Sie
OILOIL
PLASTIC FUEL HOSE QUICK RELEASE
CONNECTOR SEALING
SURFACE
A6E3912W006
B
C
APLUG
PLUG
CHECK VALVE
(TWO-WAY)
FUEL GAUGE SENDER UNIT
ROLLOVER VALVE
A6E40122034
B CA
PLUGPLUG
CHECK VALVE
(TWO-WAY)
FUEL GAUGE SENDER UNIT
ROLLOVER VALVE
A6E40122035

F2–58
EXHAUST SYSTEM
Warm Up Oxidation Catalytic Converter Removal Note
1. Support the crossmember using a jack before
removing the crossmember bracket.
2. Loosen the jack and lower the crossmember.
3. Remove the warm up oxidation catalytic
converter.
Water Hose Removal Note
1. Drain the engine coolant.
Turbocharger Removal Note
1. Remove the air pipe and the air hose before
removing the turbocharger. (See F2–36
INTAKE-AIR SYSTEM REMOVAL/
INSTALLATION.)
Exhaust Manifold Removal Note
1. Remove the EGR pipe before removing the exhaust manifold. (See F2–59 EGR VALVE REMOVAL/
INSTALLATION.)
Exhaust Manifold Installation Note
1. Tighten the exhaust manifold installation nuts in
the order shown.
Water Pipe Installation Note
1. Install the connector bolt before installing the
water pipe bracket.
Oil Pipe (Supply) Installation Note
1. Install the connector bolt before installing the
water pipe bracket.
End Of Sie
8 Exhaust manifold insulator
9 Oil pipe (supply)
(See F2–58 Oil Pipe (Supply) Installation Note)
10 Oil pipe (return)
11 Water hose
(See F2–58 Water Hose Removal Note)12 Water pipe
(See F2–58 Water Pipe Installation Note)
13 Turbocharger
(See F2–58 Turbocharger Removal Note)
14 Exhaust manifold
(See F2–58 Exhaust Manifold Removal Note)
(See F2–58 Exhaust Manifold Installation Note)
FRONT
CROSSMEMBER
CROSSMEMBER
BRACKET FRONT
A6E0612W107
87
5436
12
A6E40142003

F2–80
CONTROL SYSTEM
CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATIONA6E404018200201
Caution
•When foreign material, such as iron chips, gets on the CMP sensor, it can cause abnormal output
from the sensor because of flux turbulence and adversely affect engine control. Be sure there is
no foreign material on the CMP sensor when replacing.
•Do not forcefully pull the wiring harness of the CMP sensor. Doing so will break the harness.
1. Disconnect the negative battery cable.
2. Remove the engine cover.
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.
O-ring Installation Note
1. Apply engine oil to new O-ring thinly and install it
as does not damage.
End Of Sie
CAMSHAFT POSITION (CMP) SENSOR INSPECTIONA6E404018200202
Note
•Perform the following test only when directed.
Caution
•When foreign material, such as iron chips, gets on the CMP sensor, it can cause abnormal output
from the sensor because of flux turbulence and adversely affect engine control. Be sure there is
no foreign material on the CMP sensor when replacing.
•Do not forcefully pull the wiring harness of the CMP sensor. Doing so will break the harness.
Visual Inspection
1. Verify that the CMP sensor and the pulsar are free of any metallic shavings or particles.
•If any are found on the CMP sensor and the pulsar, clean them off.
Air Gap Inspection
1. Disconnect the negative battery cable.
2. Remove the gear cover.
3. Verify that clearance A between the CMP sensor
and the pulsar is within the specification.
•If not as specified, replace the CMP sensor.
Clearance A
0.5—1.5 mm {0.020—0.059 in}
1 CMP sensor installation bolt
2 CMP sensor
3 O-ring
(See F2–80 O-ring Installation Note)
N·m {kgf·cm, in·lbf}
3
127.8—10.8
{80—110, 69.1—95.5}
R
OILOIL
A6E40702050
CMP SENSOR
CLEARANCE A
PULSAR
A6E40702051

TROUBLESHOOTING
F2–165
F2
SYMPTOM DIAGNOSTIC INDEXA6E408018881201
TROUBLESHOOTING
No. TROUBLESHOOTING ITEM DESCRIPTION PAGE
1 Melting of main or other fuses—(See F2–173 NO.1 MELTING
OF MAIN OR OTHER FUSES)
2 MIL illuminates MIL is illuminated incorrectly.(See F2–174 NO.2 MIL
ILLUMINATES)
3 Will not crank Starter does not work.(See F2–174 NO.3 WILL NOT
CRANK)
4Hard start/long crank/erratic start/
erratic crankStarter cranks engine at normal speed but
engine requires excessive cranking time
before starting.(See F2–176 NO.4 HARD
START/LONG CRANK/
ERRATIC START/ERRATIC
CRANK)
5 Engine stalls After start/at idleEngine stops unexpectedly at idle and/or
after start.(See F2–178 NO.5 ENGINE
STALLS-AFTER START/AT
IDLE)
6 Cranks normally but will not startStarter cranks engine at normal speed but
engine will not run.(See F2–181 NO.6 CRANKS
NORMALLY BUT WILL NOT
START)
7 Slow return to idleEngine takes more time than normal to
return to idle speed.(See F2–184 NO.7 SLOW
RETURN TO IDLE)
8 Engine runs rough/rolling idleEngine speed fluctuates between specified
idle speed and lower speed and engine
shakes excessively.(See F2–186 NO.8 ENGINE
RUNS ROUGH/ROLLING
IDLE)
9 Fast idle/runs onEngine speed continues at fast idle after
warm-up.
Engine runs after engine switch is turned to
OFF.(See F2–189 NO.9 FAST
IDLE/RUNS ON)
10 Low idle/stalls during decelerationEngine stops unexpectedly at beginning of
deceleration or recovery from deceleration.(See F2–190 NO.10 LOW
IDLE/STALLS DURING
DECELERATION)
11Engine stalls/quitsAcceleration/
cruiseEngine stops unexpectedly at beginning of
acceleration or during acceleration.
Engine stops unexpectedly while cruising.
(See F2–192 NO.11 ENGINE
STALLS/QUITS, ENGINE
RUNS ROUGH, MISSES,
BUCK/JERK, HESITATION/
STUMBLE, SURGES) Engine runs roughAcceleration/
cruiseEngine speed fluctuates during acceleration
or cruising.
MissesAcceleration/
cruiseEngine misses during acceleration or
cruising.
Buck/jerkAcceleration/
cruise/
decelerationVehicle bucks/jerks during acceleration,
cruising, or deceleration.
Hesitation/stumble AccelerationMomentary pause at beginning of
acceleration or during acceleration.
SurgesAcceleration/
cruiseMomentary minor irregularity in engine
output.
12 Lack/loss of powerAcceleration/
cruisePerformance is poor under load (e.g. power
down when climbing hills).(See F2–195 NO.12 LACK/
LOSS OF POWER-
ACCELERATION/CRUISE)
13 Knocking/pingingExcessive shrilly knocking sound from
engine.(See F2–199 NO.13
KNOCKING/PINGING)
14 Poor fuel economy Fuel economy is unsatisfactory.(See F2–202 NO.14 POOR
FUEL ECONOMY)
15 Emissions compliance Fails emissions test.(See F2–205 NO.15
EMISSION COMPLIANCE)
16 High oil consumption/leakage Oil consumption is excessive.(See F2–209 NO.16 HIGH OIL
CONSUMPTION/LEAKAGE)
17Cooling system
concernsOverheatingEngine runs at higher than normal
temperature/overheats.(See F2–210 NO.17 COOLING
SYSTEM CONCERNS-
OVERHEATING)