Mazda 626 Station Wagon, Workshop Manual

Page: 22 / 577

FUEL AND EMISSION CONTROL SYSTEMS
(FP, FS, FS (Hi-power))
FEATURES
OUTLINE ........................................................ F1- 3
OUTLINE OF CONSTRUCTION.................
F 1 - 3
FEATURES..................................................
F 1 - 3
SPECIFICATIONS .......................................
F 1 - 3
CONTROLSYSTEM WIRING DIAGRAM ..
F 1 - 4
CONTROL SYSTEM .......................................... F 1 -1 0
O U T L IN E .......................................................... F 1 -1 0
CONTROL DEVICES AND CONTROL
RELATIONSHIP CHART...........................
F I-1 1
IDLE AIR CONTROL (IAC) DESCRIPTION .
F 1 -1 2
PRESSURE REGULATOR CONTROL (PRC)
DESCRIFI'ION..........................................
F 1-12
02S HEATER CONTROL DESCRIPTION ..
F 1 -1 2
EGR CONTROL DESCRIPTION.................
F 1-12
A/C CUT-OFF CONTROL DESCRIPTION ..
F 1-13
ON-BOARD D IA G N O S T IC ................................ F 1 -1 5
OUTLINE
.......................................................... F 1 -1 5
DTC..............................................................
F 1 -1 5
PID/DATA MONITOR AND RECORD
F 1 -1 8
SIMULATION T E S T .....................................
F 1 -1 9
SERVICE
SUPPLEMENTAL SERVICE
INFORMATION.............................................. F1-20
ENGINE TUNE-UP ...........................................F1-20
ENGINE TUNE-UP PREPARATION F1-20
IGNITION TIMING INSPECTION ............... F1-21
IDLE SPEED ADJUSTMENT...................... F1-22
IDLE SPEED INSPECTION ........................ F1-23
IDLE MIXTURE INSPECTION.................... F1-23
FUEL SYSTEM................................................ F1-24
FUEL TANK INSPECTION ............................ F1-24
FUEL PUMP RELAY
REMOVAL/INSTALLATION ...................... F1-24
CONTROL SYSTEM ....................................... F1-25
PCM INSPECTION.........................................F1-25
MAIN RELAY
REMOVAL/INSTALLATION ........................ F1-29
ON-BOARD DIAGNOSTIC ..............................F1-30
FOREWORD.................................................. F1-30
OUTLINE....................................................... F1-30
ON-BOARD DIAGNOSTIC T E S T ................. F1-30
AFTER REPAIR PROCEDURE.....................F1-36
DTC TABLE....................................................F1-37
DTCP0102 ....................................................F1-41
DTC P0103 ....................................................F1-43
DTC P0112 ....................................................F1-45
DTC P0113 ....................................................F1-47
DTCP0117 ....................................................F1-49
DTC P0118 ....................................................F1-51
DTC P0122 ....................................................F1-53
DTC P0123 ....................................................F1-55
DTC P0134 ....................................................F1-57
DTC P0135 ....................................................F1-59
DTC P0328 .................................................... F1-61
F1-1
DTC P0335 ................................................. F1-62
DTC P0443 ....................................................F1-64
DTC P1170 ....................................................F1-66
DTC P1250 ............................................... F1- 68
DTC P1345 ................................................F1- 70
DTC P1496 ............................................... F1- 72
DTC P1497 ............................................... F1- 74
DTC P1498 ............................................... F1- 76
DTC P1499 ................................................F1- 78
DTC P1504 ................................................F1- 80
DTC P1562 ................................................F1- 82
DTC P1602 ................................................F1- 84
DTC P1603 ................................................F1- 87
DTC P1604 ................................................F1- 87
DTC P1608 ................................................F1- 88
DTC P1621 ............................................... F1- 89
DTC P1622 ............................................... F1- 89
DTC P1623 ............................................... F1- 90
DTC P1624 ................................................F1- 90
DTC P1627 ................................................F1- 91
DTC P1631 ................................................F1- 93
DTC P1633 ................................................F1- 95
DTC P1634 ............................................... F1- 97
TROUBLESHOOTING...................................F1- 99
FOREWORD..............................................F1- 99
TROUBLESHOOTING ITEM TABLE F1- 99
QUICK DIAGNOSIS CHART ...................... F1-101
N0.1 MELTING OF MAIN OR OTHER
FU SES....................................................... F1-105
N0.2 WILL NOT CRANK ............................ F1-106
N0.3 HARD START/LONG CRANK/
ERRATIC START/ERRATIC CRANK . . . . F1-107
N0.4 ENGINE STALLS—AFTER
START/AT IDLE .........................................F1-109
N0.5 CRANKS NORMALLY BUT WILL
NOT START .............................................. F1-113
N0.6 SLOW RETURN TO IDLE ................. F1-116
N0.7 ENGINE RUNS
ROUGH/ROLLING ID L E ............................ F1-117
N0.8 FAST IDLE/RUNS O N ...................... F1-120
N0.9 LOW IDLE/STALLS DURING
DECELERATION .....................................F1-120
NO.10 ENGINE STALLS/QUITS,
ENGINE RUNS ROUGH, MISSES,
BUCK/JERK, HESITATION/STUMBLE,
SU RG ES................................................. F1-121
NO. 11 LACK/LOSS OF
POWER—ACCELERATION/
CRUISE ................................................... F1-125
NO.12 KNOCKING/PINGING—
ACCELERATION/CRUISE...................... F1-127
N0.13 POOR FUEL ECONOMY...............F1-129
N0.14 EMISSION COMPLIANCE............. F1-131
NO.15 HIGH OIL
CONSUMPTION/LEAKAGE.................... F1-132
NO. 16 COOLING SYSTEM
CONCERNS—OVERHEATING...............F1-133