
TROUBLESHOOTING
F1–57
F1
ENGINE SYMPTOM TROUBLESHOOTINGA6E398018881201•Confirm trouble symptom using the following diagnostic index, then go to appropriate troubleshooting chart.
Diagnostic Index
End Of Sie
TROUBLESHOOTING
No. TROUBLESHOOTING ITEM DESCRIPTION
1 Melting of main or other fuses—
2 MIL illuminates MIL is illuminated incorrectly.
3 Will not crank Starter does not work.
4Hard to start/long crank/erratic start/erratic
crankStarter cranks engine at normal speed but engine requires excessive
cranking time before starting.
5 Engine stalls. After start/at idle Engine stops unexpectedly at idle and/or after start.
6 Cranks normally but will not start Starter cranks engine at normal speed but engine will not run.
7 Slow return to idle Engine takes more time than normal to return to idle speed.
8 Engine runs rough/rolling idleEngine speed fluctuates between specified idle speed and lower
speed and engine shakes excessively.
9 Fast idle/runs onEngine speed continues at fast idle after warm-up.
Engine runs after ignition switch is turned to off.
10 Low idle/stalls during decelerationEngine stops unexpectedly at beginning of deceleration or recovery
from deceleration.
11Engine stalls/quits. Acceleration/cruiseEngine stops unexpectedly at beginning of acceleration or during
acceleration.
Engine stops unexpectedly while cruising.
Engine runs rough. Acceleration/cruise Engine speed fluctuates during acceleration or cruising.
Misses Acceleration/cruise Engine misses during acceleration or cruising.
Buck/jerkAcceleration/cruise/
decelerationVehicle bucks/jerks during acceleration, cruising, or deceleration.
Hesitation/stumble Acceleration Momentary pause at beginning of acceleration or during acceleration
Surges Acceleration/cruise Momentary minor irregularity in engine output
12 Lack/loss of power Acceleration/cruisePerformance is poor under load.
(e.g., power down when climbing hills)
13 Knocking/pinging Acceleration/cruiseSound is produced when air/fuel mixture is ignited by something other
than spark plug. (e.g., hot spot in combustion chamber)
14 Poor fuel economy Fuel economy is unsatisfactory.
15 Emission compliance Fails emissions test.
16 High oil consumption/leakage Oil consumption is excessive.
17Cooling system
concernsOverheating Engine runs at higher than normal temperature/overheats.
18Cooling system
concernsRuns cold Engine does not reach normal operating temperature.
19 Exhaust smoke Blue, black, or white smoke from exhaust system
20 Fuel odor (in engine compartment) Gasoline fuel smell or visible leakage
21 Engine noise Engine noise from under hood
22 Vibration concerns (engine) Vibration from under hood or driveline
23 A/C does not work sufficiently.A/C compressor magnetic clutch does not engage when A/C is turned
on.
24A/C is always on or A/C compressor runs
continuously.A/C compressor magnetic clutch does not disengage.
25 A/C is not cut off under WOT conditions. A/C compressor magnetic clutch does not disengage under WOT.
26 Exhaust sulphur smell Rotten egg smell (sulphur) from exhaust
27 Constant voltage Incorrect constant voltage
28 Spark plug condition Incorrect spark plug condition
29 ATX concernsUpshift/downshift/
engagementATX concerns not related to engine performance

F1–58
TROUBLESHOOTING
QUICK DIAGNOSTIC CHARTA6E398018881202
X: Applicable
Possible factor
Troubleshooting item
Starter motor malfunction (Mechanical or electrical)
Starter circuit including ignition switch is open.
Starter interlock switch malfunction (MTX with starter
interlock system)
Improper engine oil level
Low or dead battery
Charging system malfunction
Improper engine compression
Improper valve timing
Hydrolocked engine
Improper engine oil viscosity
Improper dipstick
Base engine malfunction
Drive plate or flywheel are seized.
Improper tension or damaged drive belts
Improper engine coolant level
Water and anti-freeze mixture is improper.
Cooling system malfunction (Radiator, hoses,
overflow system, thermostat, etc.)
Cooling fan system malfunction
Engine or transaxle mounts are improperly installed.
Cooling fan or condenser fan seat are improper.
Accelerator cable free play misadjustment
Cruise control cable misadjustment
Fuel quality
1 Melting of main or other fuses2 MIL illuminates x x x x x x x3 Will not crank4 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 start x x x x7 Slow return to idlex8 Engine runs rough/rolling idle x x x9 Fast idle/runs onxx10 Low idle/stalls during decelerationEngine stalls/quits. Acceleration/cruise x x xEngine runs rough. Acceleration/cruise x x xMissesAcceleration/cruise x x xBuck/jerk Acceleration/cruise/
decelerationxx x
Hesitation/stumble Acceleration x x x
11
Surges Acceleration/cruis
exx x12 Lack/loss of powerAcceleration/cruisexx x13 Knocking/pingingAcceleration/cruisexx14 Poor fuel economy x x x x x x15 Emission compliance x x x x16 High oil consumption/leakage x x x17 Cooling system concerns Overheatingxx x x x18 Cooling system concernsRuns cold x x19 Exhaust smoke x x x20 Fuel odor (in engine compartment)21 Engine noise x x x22 Vibration concerns (engine) x x x23 A/C does not work sufficiently.24 A/C is always on or A/C compressor runs
continuously.
25 A/C is not cut off under WOT conditions.26 Exhaust sulfur smellx27 Constant voltage28 Spark plug condition x x29 ATX concernsUpshift/downshift
engagementSee Section K, TROUBLESHOOTING
A6E39802001

TROUBLESHOOTING
F1–59
F1
X: Applicable
Possible factor
Troubleshooting itemVariable valve timing system malfunction (L3 engine
model)
VICS malfunction
Engine overheating
Air cleaner element clogging or restriction
Air leakage from intake-air system (Loose tubes,
cracks, gaskets breakage)
IAC valve improper operation
Throttle body malfunction
VICS malfunction (L3 engine model)
VACS malfunction (L3 engine model)
Vacuum leakage (Vacuum hose damage, misrouting)
Ignition coil malfunction (e.g. open, short or cracks)
Initial ignition timing misadjustment (CKP sensor &
crankshaft pulley misadjustment)
Spark plug malfunction
High-tension leads malfunction (Cracks, open, low
resistance)
CKP sensor is damaged. (e.g. open or short circuits )
Crankshaft pulley is damaged
Improper gap between CKP sensor and crankshaft
Fuel pump malfunction (Mechanically or electrically)
Pressure regulator malfunction
Fuel hoses restriction or clogging
1 Melting of main or other fuses2 MIL illuminates x x x x x3 Will not crank4 Hard to start/long crank/erratic start/erratic
crankx x x x x x xxxxxx
5 Engine stalls. x x x x x xxxxxxxxxxx6 Cranks normally but will not start x x x x xxxxxxxxxxx7 Slow return to idle x8 Engine runs rough/rolling idle x x x x x x x x xxxxxxx9 Fast idle/runs on x x10 Low idle/stalls during deceleration x x xEngine stalls/quits. Acceleration/cruise x x x x x x x x xxxxxxxEngine runs rough. Acceleration/cruise x x x x x x x x xxxxxxxMissesAcceleration/cruise x x x x x x x x xxxxxxxBuck/jerk Acceleration/cruise/dece
lerationxxx x xx x x x xxxxxx
Hesitation/stumble Acceleration x x x x x x x x xxxxxxx
11
Surges Acceleration/cruise x x x x x x x x xxxxxxx
12 Lack/loss of powerAcceleration/cruise x x x x x x x x xxxxxxx13 Knocking/pingingAcceleration/cruise x x x14 Poor fuel economy x x x x x x x15 Emission compliance x x x x x x x x x16 High oil consumption/leakage17 Cooling system
concernsOverheating
18 Cooling system
concernsRuns cold
19 Exhaust smoke x x x x x x20 Fuel odor (in engine compartment)x21 Engine noise x x x22 Vibration concerns (engine)23 A/C does not work sufficiently.24 A/C is always on or A/C compressor runs
continuously.
25 A/C is not cut off under WOT conditions.26 Exhaust sulfur smell x x x x27 Constant voltage28 Spark plug condition x x x x x x29 ATX concernsUpshift/downshift
engagementSee Section K, TROUBLESHOOTING
A6E39802002

F1–60
TROUBLESHOOTING
X: Applicable
Possible factor
Troubleshooting item
Injectors malfunction (Leakage or clogging, inope-rative
Fuel leakage from fuel system (including insulator,
injector O-ring)
Fuel filters restriction or clogging
CMP sensor is damaged. (e.g. open or short circuit)
Camshaft is damaged.
Improper air/fuel mixture ratio control
Exhaust system restriction or clogging
Catalytic converter malfunction
EGR system malfunction (Unleaded gasoline models)
EVAP control system malfunction
PCV valve malfunction
Constant voltage supply circuit malfunction
Main relay malfunction (Mechanically or electrically)
ECT sensor malfunction
TR sensor misadjustment (ATX)
TR sensor malfunction (ATX)
Break switch and related circuit malfunction
Manifold absolute pressure sensor and related circuit
malfunction
HO2S and related circuit malfunction (Unleaded
gasoline models)
Variable resistor misadjustment (Leaded gasoline
models)
Improper electrically controlled 4WD system operation
1 Melting of main or other fuses2 MIL illuminates x x x x x x x3 Will not crankxx4 Hard to start/long crank/erratic start/erratic
crankx xx xxx x
5 Engine stalls. After start/at idle x x x x x x x x x6 Cranks normally but will not start x x x xxxxxx x7 Slow return to idlex8 Engine runs rough/rolling idle xxxxxx xxx x9 Fast idle/runs onx10 Low idle/stalls during deceleration x x x x xEngine stalls/quits.Acceleration/cruisex xxxxx xxxxx xEngine runs rough. Acceleration/cruisex xxxxx xxxxx xMissesAcceleration/cruisex xxxxx xxxxx xBuck/jerk Acceleration/cruise/
decelerationx xxxxx xxxxx x
Hesitation/stumble Acceleration xxxxxx xxxxx x
11
Surges Acceleration/cruise xxxxxx xxxxx x
12 Lack/loss of power Acceleration/cruise x x x x x x x x13 Knocking/pingingAcceleration/cruise x14 Poor fuel economy x x x x x x15 Emission compliancexxxxxxxxx x16 High oil consumption/leakage x17 Cooling system concerns Overheating18 Cooling system concernsRuns cold19 Exhaust smoke x x20 Fuel odor (in engine compartment) x x21 Engine noise22 Vibration concerns (engine)x23 A/C does not work sufficiently.24 A/C is always on or A/C compressor runs
continuously.
25 A/C is not cut off under WOT conditions.26 Exhaust sulfur smell x x27 Constant voltage x x x x x28 Spark plug condition x x x x29 ATX concernsUpshift/downshift/en
gagementSee Section K, TROUBLESHOOTING
A6E39802003

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
![MAZDA 6 2002 Workshop Manual Suplement F2–1
F2
F2FUEL AND EMISSION CONTROL SYSTEMS
[MZR-CD (RF Turbo)]
OUTLINE.............................................................. F2-3
OUTLINE OF CONSTRUCTION ....................... F2-3
FEATUR MAZDA 6 2002 Workshop Manual Suplement F2–1
F2
F2FUEL AND EMISSION CONTROL SYSTEMS
[MZR-CD (RF Turbo)]
OUTLINE.............................................................. F2-3
OUTLINE OF CONSTRUCTION ....................... F2-3
FEATUR](/manual-img/28/57057/w960_57057-152.png)
F2–1
F2
F2FUEL AND EMISSION CONTROL SYSTEMS
[MZR-CD (RF Turbo)]
OUTLINE.............................................................. F2-3
OUTLINE OF CONSTRUCTION ....................... F2-3
FEATURES ........................................................ F2-3
SPECIFICATIONS ............................................. F2-3
CONTROL SYSTEM DIAGRAM ........................ F2-4
CONTROL SYSTEM WIRING DIAGRAM.......... F2-5
INTAKE-AIR SYSTEM.......................................... F2-8
OUTLINE ........................................................... F2-8
STRUCTURAL VIEW......................................... F2-9
FUEL SYSTEM................................................... F2-10
OUTLINE ......................................................... F2-10
STRUCTURAL VIEW....................................... F2-11
EXHAUST SYSTEM........................................... F2-13
OUTLINE ......................................................... F2-13
STRUCTURAL VIEW....................................... F2-13
EMISSION SYSTEM........................................... F2-14
OUTLINE ......................................................... F2-14
STRUCTURAL VIEW....................................... F2-15
WARM UP OXIDATION CATALYTIC
CONVERTER DESCRIPTION ...................... F2-16
CONTROL SYSTEM........................................... F2-16
OUTLINE ......................................................... F2-16
STRUCTURAL VIEW....................................... F2-18
BLOCK DIAGRAM ........................................... F2-20
CONTROL DEVICE AND CONTROL
RELATIONSHIP CHART .............................. F2-22
CRUISE CONTROL SYSTEM ......................... F2-23
CONTROLLER AREA NETWORK (CAN) ....... F2-24
ON-BOARD DIAGNOSTIC................................. F2-24
OUTLINE ......................................................... F2-24
DTC.................................................................. F2-24
KOEO/KOER SELF-TEST ............................... F2-26
PID/DATA MONITOR AND RECORD ............. F2-27
SIMULATION TEST ......................................... F2-27
LOCATION INDEX............................................. F2-28
INTAKE-AIR SYSTEM ..................................... F2-28
FUEL SYSTEM ................................................ F2-29
EMISSION SYSTEM........................................ F2-31
CONTROL SYSTEM........................................ F2-32
ENGINE TUNE-UP............................................. F2-34
ENGINE TUNE-UP PREPARATION ............... F2-34
IDLE SPEED INSPECTION ............................. F2-34
CORRECTION PROCEDURE ......................... F2-34
INTAKE-AIR SYSTEM........................................ F2-35
VACUUM TUBE ROUTING DIAGRAM............ F2-35
INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .......................... F2-36
AIR CLEANER ELEMENT INSPECTION ........ F2-37
TURBOCHARGER INSPECTION ................... F2-38
GUIDE BLADE ACTUATOR INSPECTION ..... F2-39
VARIABLE BOOST CONTROL (VBC)
SOLENOID VALVE INSPECTION ................ F2-40VARIABLE BOOST CONTROL (VBC)
CHECK VALVE INSPECTION ...................... F2-41
VARIABLE SWIRL CONTROL (VSC)
VALVE ACTUATOR INSPECTION ............... F2-41
VARIABLE SWIRL CONTROL (VSC)
SOLENOID VALVE INSPECTION ................ F2-42
GLOW PLUG REMOVAL/INSTALLATION ...... F2-42
GLOW PLUG INSPECTION ............................ F2-43
GLOW PLUG LEAD INSPECTION .................. F2-43
ACCELERATOR PEDAL COMPONENT
REMOVAL/INSTALLATION .......................... F2-44
ACCELERATOR PEDAL COMPONENT
DISASSEMBLY/ASSEMBLY ........................ F2-44
FUEL SYSTEM................................................... F2-45
BEFORE REPAIR PROCEDURE .................... F2-45
AFTER REPAIR PROCEDURE ....................... F2-45
FUEL TANK REMOVAL/INSTALLATION ........ F2-45
FUEL TANK INSPECTION .............................. F2-49
NONRETURN VALVE INSPECTION............... F2-50
FUEL FILTER COMPONENT
REMOVAL/INSTALLATION .......................... F2-50
FUEL FILTER COMPONENT
DISASSEMBLY/ASSEMBLY ........................ F2-51
FUEL WARMER INSPECTION........................ F2-51
SEDIMENTOR WATER DRAINING................. F2-52
SEDIMENTOR SWITCH INSPECTION ........... F2-52
SUPPLY PUMP REMOVAL/INSTALLATION .. F2-53
SUPPLY PUMP INSPECTION......................... F2-54
SUCTION CONTROL VALVE INSPECTION ... F2-54
COMMON RAIL INSPECTION ........................ F2-54
FUEL INJECTOR REMOVAL/INSTALLATION F2-55
FUEL INJECTOR INSPECTION ...................... F2-56
EXHAUST SYSTEM........................................... F2-57
EXHAUST SYSTEM INSPECTION ................. F2-57
EXHAUST SYSTEM
REMOVAL/INSTALLATION .......................... F2-57
EMISSION SYSTEM........................................... F2-59
EGR VALVE REMOVAL/INSTALLATION........ F2-59
EGR VALVE INSPECTION .............................. F2-59
EGR SOLENOID VALVE (VACUUM)
INSPECTION ................................................ F2-60
EGR SOLENOID VALVE (VENT)
INSPECTION ................................................ F2-60
EGR CONTROL SOLENOID VALVE
INSPECTION ................................................ F2-61
INTAKE SHUTTER VALVE ACTUATOR
INSPECTION ................................................ F2-62
INTAKE SHUTTER SOLENOID VALVE
INSPECTION ................................................ F2-63
CONTROL SYSTEM........................................... F2-64
PCM REMOVAL/INSTALLATION .................... F2-64
PCM INSPECTION .......................................... F2-65
PCM CONFIGURATION .................................. F2-68
CLUTCH SWITCH INSPECTION .................... F2-68
NEUTRAL SWITCH INSPECTION .................. F2-69
IDLE SWITCH INSPECTION ........................... F2-70
IDLE SWITCH ADJUSTMENT ......................... F2-71
ACCELERATOR POSITION SENSOR
INSPECTION ................................................ F2-72
ACCELERATOR POSITION SENSOR
ADJUSTMENT .............................................. F2-73 FEATURES
SERVICE

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

OUTLINE
F2–3
F2
OUTLINE OF CONSTRUCTIONA6E400218881201•The common rail injection system has been adopted for Mazda6 (GG, GY) MZR-CD (RF Turbo) engine
models.
•The fuel and emission control system is essentially carried over from that of the current MPV (LW) MZR-CD
(RF Turbo) engine models, except for the following features. (See MPV Workshop Manual Supplement 1737-
1*-02C.)
End Of Sie
FEATURESA6E400218881202Improved Emission Performance
•Warm up oxidation catalytic converter capacity has been increased.
System Simplification
•Immobilizer unit has been equipped into PCM
•Cruise control system has been adopted.
•Electrical fan control has been changed.
•CAN has been changed.
Improved Serviceability
•DTCs, PID monitoring items, and simulation test items have been changed.
•KOEO/KOER self-test items have been changed.
End Of Sie
SPECIFICATIONSA6E400218881203
Bold frames: New specifications
End Of Sie
OUTLINE
ItemNew Mazda6 (GG, GY) Current MPV (LW)
MZR-CD (RF Turbo)
Air cleaner element Type Non woven fabric (dry)
Supercharger Type Turbocharger
Glow plug Type Metal
Pump Type Supply pump
Fuel tankCapacity
64 {16.9, 14.1} 75 {19.8, 16.5}
(L {US gal, lmp gal})
Catalyst Type Warm up oxidation catalyst, Oxidation catalyst
EGR control Type Duty control
PCV system Type Closed