Mazda 3 - Page 6

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
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NO.4 HARD TO START/LONG CRANK/ERRATIC START/ERRATIC CRANK [Z6] .................. 451
NO.5 ENGINE STALLS-AFTER START/AT IDLE [Z6] .................................................................... 455
NO.6 CRANKS NORMALLY BUT WILL NOT START [Z6] ............................................................. 461
NO.7 SLOW RETURN TO IDLE [Z6] .................................................................................................. 468
NO.8 ENGINE RUNS ROUGH/ROLLING IDLE [Z6] ........................................................................ 469
NO.9 FAST IDLE/RUNS ON [Z6] ......................................................................................................... 475
NO.10 LOW IDLE/STALLS DURING DECELERATION [Z6] .......................................................... 477
NO.11 ENGINE STALLS/QUITS, ENGINE RUNS ROUGH, MISSES, BUCK/JERK,
HESITATION/STUMBLE, SURGES [Z6] ............................................................................................ 480
NO.12 LACK/LOSS OF POWER-ACCELERATION/CRUISE [Z6] ................................................. 486
NO.13 KNOCKING/PINGING-ACCELERATION/CRUISE [Z6] ...................................................... 492
NO.14 POOR FUEL ECONOMY [Z6] ................................................................................................. 494
NO.15 EMISSION COMPLIANCE [Z6] ............................................................................................... 497
NO.16 HIGH OIL CONSUMPTION/LEAKAGE [Z6] .......................................................................... 500
NO.17 COOLING SYSTEM CONCERNS-OVERHEATING [Z6] .................................................... 501
NO.18 COOLING SYSTEM CONCERNS-RUNS COLD [Z6].......................................................... 504
NO.19 EXHAUST SMOKE [Z6] ............................................................................................................ 505
NO.20 FUEL ODOR (IN ENGINE COMPARTMENT) [Z6] .............................................................. 508
NO.21 ENGINE NOISE [Z6] ................................................................................................................. 510
NO.22 VIBRATION CONCERNS (ENGINE) [Z6] .............................................................................. 512
NO.23 A/C DOES NOT WORK SUFFICIENTLY [Z6] ....................................................................... 512
NO.24 A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY [Z6] ................ 514
NO.25 A/C IS NOT CUT OFF UNDER WIDE OPEN THROTTLE CONDITIONS [Z6] ............... 516
NO.26 EXHAUST SULPHUR SMELL [Z6] ......................................................................................... 517
NO.27 SPARK PLUG CONDITION [Z6] ............................................................................................. 519
INTERMITTENT CONCERN TROUBLESHOOTING [Z6] ............................................................... 524
Vibration Method ................................................................................................................................. 524
Inspection Method for Switch Connectors or Wiring Harnesses ................................................. 524
Inspection Method for Sensor Connectors or Wiring Harnesses ................................................ 525
Inspection Method for Sensors ......................................................................................................... 525
Inspection Method for Actuators or Relays .................................................................................... 526
Water Sprinkling Method ................................................................................................................... 526
ENGINE CONTROL SYSTEM OPERATION INSPECTION [Z6] ................................................... 527
Main Relay Operation Inspection ..................................................................................................... 527
Intake Manifold Vacuum Inspection ................................................................................................. 527
Idle Air Control System Inspection ................................................................................................... 528
Engine coolant temperature compensation inspection ............................................................. 528