Mazda 626 - Fuel and Emission Control Systems (FP, FS, FS (Hi-Power))

FUEL AND EMISSION CONTROL SYSTEMS
(FP, FS, FS (Hi-power))
FEATURES
OUTLINE ........................................................ F1- 3
OUTLINE OF CONSTRUCTION ................. F1- 3
FEATURES..................................................F1- 3
SPECIFICATIONS ....................................... F1- 3
CONTROLSYSTEM WIRING DIAGRAM .. F1- 4
CONTROL SYSTEM .......................................... F1-10
OUTLINE .......................................................... F1-10
CONTROL DEVICES AND CONTROL
RELATIONSHIP CHART ........................... FI-11
IDLE AIR CONTROL (IAC) DESCRIPTION . F1-12
PRESSURE REGULATOR CONTROL (PRC)
DESCRIFI'ION .......................................... F1-12
02S HEATER CONTROL DESCRIPTION .. F1-12
EGR CONTROL DESCRIPTION ................. F1-12
A/C CUT-OFF CONTROL DESCRIPTION .. F1-13
ON-BOARD DIAGNOSTIC ................................ F1-15
OUTLINE .......................................................... F1-15
DTC .............................................................. F1-15
PID/DATA MONITOR AND RECORD F1-18
SIMULATION TE ST ..................................... F1-19
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 TEST ................. 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
FUSES
....................................................... 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 IDLE ............................ 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,
SURGES ................................................. 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