Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1991 Mazda 626 L4-2184cc 2.2L SOHC F2FACTORY OEM SERVICE PROCEDURE
Repair and Diagnosis
- A L L Diagnostic Trouble Codes ( DTC )
- Relays and Modules
- Relays and Modules - Accessories and Optional Equipment
- Relays and Modules - Body and Frame
- Relays and Modules - Brakes and Traction Control
- Relays and Modules - Cooling System
- Relays and Modules - Cruise Control
- Relays and Modules - HVAC
- Relays and Modules - Instrument Panel
- Relays and Modules - Lighting and Horns
- Relays and Modules - Powertrain Management
- Relays and Modules - Restraints and Safety Systems
- Relays and Modules - Starting and Charging
- Relays and Modules - Steering and Suspension
- Relays and Modules - Transmission and Drivetrain
- Relays and Modules - Windows and Glass
- Sensors and Switches
- Sensors and Switches - Body and Frame
- Sensors and Switches - Brakes and Traction Control
- Sensors and Switches - Cooling System
- Sensors and Switches - Engine
- Sensors and Switches - HVAC
- Sensors and Switches - Instrument Panel
- Sensors and Switches - Lighting and Horns
- Sensors and Switches - Powertrain Management
- Sensors and Switches - Computers and Control Systems
- Air Flow Meter/Sensor
- Barometric Pressure Sensor
- Clutch Switch
- EGR Valve Position Sensor
- Electric Load Sensor
- Air Temperature Sensor ( Ambient / Intake )
- Knock Sensor
- Oxygen Sensor
- Power Steering Pressure Switch
- Throttle Full Close Switch
- Throttle Position Sensor
- Throttle Position Switch
- Transmission Position Sensor/Switch
- Vehicle Speed Sensor
- Sensors and Switches - Emission Control Systems
- Sensors and Switches - Fuel Delivery and Air Induction
- Sensors and Switches - Ignition System
- Sensors and Switches - Computers and Control Systems
- Sensors and Switches - Starting and Charging
- Sensors and Switches - Steering and Suspension
- Sensors and Switches - Transmission and Drivetrain
- Sensors and Switches - Windows and Glass
- Sensors and Switches - Wiper and Washer Systems
- Maintenance
- Alignment
- Tune-up and Engine Performance Checks
- Fuel Pressure
- Air/Fuel Mixture
- Idle Speed
- Air Cleaner Housing
- Fuel Filter
- Firing Order
- Ignition Timing
- Ignition Cable
- Distributor
- Spark Plug
- Compression Check
- Valve Clearance
Service Precautions
Technical Service Bulletins
- Timing Belt
- Timing Component Alignment Marks
- Drive Belt
- Filters
- Hoses
- Fluids
- Brake Bleeding
- Fuses and Circuit Breakers
- Service Reminder Indicators
- Wheels and Tires
- Service Intervals
- Severe Service Defined
- Routine Service
- Normal Service
- 7500 MI or 12000 KM
- 15000 MI or 24000 KM
- 22500 MI or 36000 KM
- 30000 MI or 48000 KM
- 37500 MI or 60000 KM
- 45000 MI or 72000 KM
- 52500 MI or 84000 KM
- 60000 MI or 96000 KM
- 67500 MI or 108000 KM
- 75000 MI or 120000 KM
- 82500 MI or 132000 KM
- 90000 MI or 144000 KM
- 97500 MI or 156000 KM
- 105000 MI or 168000 KM
- 112500 MI or 180000 KM
- 120000 MI or 192000 KM
- 150000 MI or 240000 KM
- Severe Service
- 5000 MI or 8000 KM
- 10000 MI or 16000 KM
- 15000 MI or 24000 KM
- 20000 MI or 32000 KM
- 25000 MI or 40000 KM
- 30000 MI or 48000 KM
- 35000 MI or 56000 KM
- 40000 MI or 64000 KM
- 45000 MI or 72000 KM
- 50000 MI or 80000 KM
- 55000 MI or 88000 KM
- 60000 MI or 96000 KM
- 65000 MI or 104000 KM
- 70000 MI or 112000 KM
- 75000 MI or 120000 KM
- 80000 MI or 128000 KM
- 85000 MI or 136000 KM
- 90000 MI or 144000 KM
- 95000 MI or 152000 KM
- 100000 MI or 160000 KM
- 105000 MI or 168000 KM
- 110000 MI or 176000 KM
- 115000 MI or 184000 KM
- 120000 MI or 192000 KM
Service and Repair- Technical Service Bulletins
- Engine, Cooling and Exhaust
- Engine
- Compression Check
- Camshaft, Lifters and Push Rods
- Cylinder Block Assembly
- Cylinder Head Assembly
- Drive Belts, Mounts, Brackets and Accessories
- Engine Lubrication
- Intake Manifold
- Lamps and Indicators - Engine
- Seals and Gaskets
- Sensors and Switches - Engine
- Timing Components
- Tune-up and Engine Performance Checks
- Fuel Pressure
- Air/Fuel Mixture
- Idle Speed
- Air Cleaner Housing
- Fuel Filter
- Firing Order
- Ignition Timing
- Ignition Cable
- Distributor
- Spark Plug
- Compression Check
- Valve Clearance
- Service Precautions
- Technical Service Bulletins
- Water Pump
- Service and Repair
Diagrams
Specifications- Technical Service Bulletins
- Cooling System
- Coolant
- Radiator Cooling Fan
- Engine - Coolant Temperature Sensor/Switch
- Heater Core
- Lamps and Indicators - Cooling System
- Radiator
- Radiator Cap
- Relays and Modules - Cooling System
- Sensors and Switches - Cooling System
- Temperature Gauge
- Thermostat
- Thermostat Housing
- Water Pump
Testing and Inspection- Specifications
- Technical Service Bulletins
- Exhaust System
- Technical Service Bulletins
- Engine
- Powertrain Management
- Relays and Modules - Powertrain Management
- Sensors and Switches - Powertrain Management
- Sensors and Switches - Computers and Control Systems
- Air Flow Meter/Sensor
- Barometric Pressure Sensor
- Clutch Switch
- EGR Valve Position Sensor
- Electric Load Sensor
- Air Temperature Sensor ( Ambient / Intake )
- Knock Sensor
- Oxygen Sensor
- Power Steering Pressure Switch
- Throttle Full Close Switch
- Throttle Position Sensor
- Throttle Position Switch
- Transmission Position Sensor/Switch
- Vehicle Speed Sensor
- Sensors and Switches - Emission Control Systems
- Sensors and Switches - Fuel Delivery and Air Induction
- Sensors and Switches - Ignition System
- Sensors and Switches - Computers and Control Systems
- Tune-up and Engine Performance Checks
- Fuel Pressure
- Air/Fuel Mixture
- Idle Speed
- Air Cleaner Housing
- Fuel Filter
- Firing Order
- Ignition Timing
- Ignition Cable
- Distributor
- Spark Plug
- Compression Check
- Valve Clearance
- Service Precautions
- Technical Service Bulletins
- Computers and Control Systems
- Air Flow Meter/Sensor
- Air Temperature Sensor ( Ambient / Intake )
- Barometric Pressure Sensor
- Body Control Module
- Clutch Switch
- Data Link Connector
- EGR Valve Position Sensor
- Electric Load Sensor
- Electronic Spark Control Module
- Engine Control Module
- Idle Speed/Throttle Actuator - Electronic
- Knock Sensor
- Main Relay (Computer/Fuel System)
- Malfunction Indicator Lamp
- Oxygen Sensor
- Power Steering Pressure Switch
- Relays and Modules - Computers and Control Systems
- Sensors and Switches - Computers and Control Systems
- Air Flow Meter/Sensor
- Barometric Pressure Sensor
- Clutch Switch
- EGR Valve Position Sensor
- Electric Load Sensor
- Air Temperature Sensor ( Ambient / Intake )
- Knock Sensor
- Oxygen Sensor
- Power Steering Pressure Switch
- Throttle Full Close Switch
- Throttle Position Sensor
- Throttle Position Switch
- Transmission Position Sensor/Switch
- Vehicle Speed Sensor
- Throttle Full Close Switch
- Throttle Position Sensor
- Throttle Position Switch
- Transmission Position Sensor/Switch
- Vehicle Speed Sensor
- Voltage Signal
- Service Precautions
Description and Operation- Testing and Inspection
Locations- Diagrams
- Specifications
- Technical Service Bulletins
- Emission Control Systems
- Catalytic Converter
- Evaporative Emissions System
- Exhaust Gas Recirculation
- Positive Crankcase Ventilation
- Sensors and Switches - Emission Control Systems
- Application and ID
- Description and Operation
- Testing and Inspection
- Flow of Diagnosis
- Initial Inspection and Diagnostic Overview
- Symptom Related Diagnostic Procedures
Adjustments- Locations
- Diagrams
- Specifications
- Technical Service Bulletins
- Fuel Delivery and Air Induction
- Fuel Pressure
- Fuel Pressure Release
- Idle Speed
- Air/Fuel Mixture
- Accelerator Pedal
- Air Cleaner Housing
- Air Flow Meter/Sensor
- Fuel
- Fuel Filter
- Fuel Injector
- Fuel Pressure Control Solenoid
- Fuel Pressure Regulator
- Fuel Pressure Pulsation Damper
- Fuel Pump
- Fuel Rail
- Fuel Supply Line
- Fuel Tank
- Fuel Tank Unit
- Idle Speed/Throttle Actuator - Electronic
- Idle/Altitude Compensator (Non Comp. Controlled)
- Main Relay (Computer/Fuel System)
- Relays and Modules - Fuel Delivery and Air Induction
- Rollover Valve
- Sensors and Switches - Fuel Delivery and Air Induction
- Throttle Body
- Throttle Cable/Linkage
- Throttle Full Close Switch
- Throttle Position Sensor
- Throttle Position Switch
- Turbocharger
- Service Precautions
- Description and Operation
- Testing and Inspection
- Diagrams
- Specifications
- Technical Service Bulletins
- Ignition System
- Firing Order
- Ignition Timing
- Distributor
- Electronic Spark Control Module
- Ignition Cable
- Ignition Coil
- Ignition Control Module
- Ignition Relay
- Knock Sensor
- Pick-Up Coil
- Relays and Modules - Ignition System
- Sensors and Switches - Ignition System
- Spark Plug
- Service Precautions
- Testing and Inspection
- Locations
- Diagrams
- Specifications
- Transmission Control Systems
- Service Precautions
- Application and ID
- Locations
- Diagrams
- Technical Service Bulletins
- Transmission and Drivetrain
- Actuators and Solenoids - Transmission and Drivetrain
- Automatic Transmission/Transaxle
- Actuators and Solenoids - A/T
- Band
- Control Module
- Cooling Fan Motor Relay
- Fluid - A/T
- Fluid Pump
- Relays and Modules - A/T
- Sensors and Switches - A/T
- Shift Interlock
- Shift Solenoid
- Shifter A/T
- Shift Linkage
- Torque Converter Clutch
- Transmission Cooler
- Transmission Mode Switch
- Transmission Position Sensor/Switch
- Transmission Speed Sensor
- Transmission Temperature Sensor/Switch
- Valve Body
- Application and ID
- Description and Operation
- Testing and Inspection
- Initial Inspection and Diagnostic Overview
- Reading and Clearing Diagnostic Trouble Codes
- Symptom Related Diagnostic Procedures
- Automatic Transaxle Symptom Troubleshooting
- Testing Procedures
- Diagnosis By Symptom
- Abnormal Shift Sequence
- Engine Runaway or Slip When Up or Downshifting
- Engine Will Not Start
- Excessive Creep
- Excessive High or Low Shift Point
- Excessive N to D or N to R Shift Shock
- Excessive Shift Shock When Changing Range
- Excessive Shift Shock When Up or Downshifting
- Frequent Shifting
- Hold Indicator Flashes
- No Creep at All
- No Engine Braking
- No Kickdown
- No Lockup
- No Mode Change
- No Shift
- Transaxle Noisy In N or P Range
- Transmission Noisy In D, S, L or R Range
- Transaxle Overheats
- Vehicle Does Not Move In D, S, L or R Range
- Vehicle Moves In N Range
- Vehicle Moves In P, or Parking Gear
- Shift-Lock System Diagnostic Chart
- Diagnosis By Symptom
- Component Tests and General Diagnostics
- Locations
- Service and Repair
- Diagrams
- Specifications
- Technical Service Bulletins
Tools and Equipment
- Clutch
- Differential Assembly
- Drive Axles, Bearings and Joints
- Drive/Propeller Shafts, Bearings and Joints
- Flex Plate
- Flywheel
- Manual Transmission/Transaxle
- Relays and Modules - Transmission and Drivetrain
- Sensors and Switches - Transmission and Drivetrain
- Transmission Control Systems
- Technical Service Bulletins
- Brakes and Traction Control
- Antilock Brakes / Traction Control Systems
- Brake Bleeding
- Disc Brake System
- Drum Brake System
- Hydraulic System
- Parking Brake System
- Power Brake Assist
- Relays and Modules - Brakes and Traction Control
- Sensors and Switches - Brakes and Traction Control
- Testing and Inspection
- Technical Service Bulletins
- Starting and Charging
- Sensors and Switches - Starting and Charging
- Relays and Modules - Starting and Charging
- Battery
- Charging System
- Starting System
- Power and Ground Distribution
- Technical Service Bulletins
- Power and Ground Distribution
- Steering and Suspension
- Alignment
- Relays and Modules - Steering and Suspension
- Sensors and Switches - Steering and Suspension
- Steering
- Suspension
- Ball Joint
- Control Arm
- Cross-Member
- Lateral Stabilizer Rod
- Relays and Modules - Suspension
- Sensors and Switches - Suspension
- Stabilizer Bar
- Suspension Control ( Automatic - Electronic )
- Suspension Spring ( Coil / Leaf )
- Suspension Strut / Shock Absorber
- Trailing Arm
- Wheel Bearing
- Wheel Hub
- Diagrams
- Specifications
- Technical Service Bulletins
- Wheels and Tires
- Technical Service Bulletins
- Heating and Air Conditioning
- Air Conditioning Switch
- Air Door
- Blower Motor
- Blower Motor Relay
- Blower Motor Resistor
- Blower Motor Switch
- Compressor HVAC
- Compressor Clutch Relay
- Condenser HVAC
- Condenser Fan
- Condenser Fan Motor Relay
- Control Assembly
- Coupler HVAC
- Evaporator Core
- Evaporator Temperature Sensor / Switch
- Expansion Valve
- Heater Core
- High Pressure Safety Valve HVAC
- Housing Assembly HVAC
- Receiver Dryer
- Refrigerant
- Refrigerant Oil
- Relays and Modules - HVAC
- Sensors and Switches - HVAC
- Service Port HVAC
- Service Precautions
- Testing and Inspection
- Locations
- Service and Repair
- Diagrams
- Technical Service Bulletins
- Restraints and Safety Systems
- Accessories and Optional Equipment
- Body and Frame
- Cruise Control
- Instrument Panel, Gauges and Warning Indicators
- ABS Light
- Audible Warning Device
- Charge Lamp/Indicator
- Cigarette Lighter
- Clock
- Cruise Control Indicator Lamp
- Dashboard / Instrument Panel
- Door/Trunk Ajar Indicator/Lamp
- Fuel Gauge
- Instrument Cluster / Carrier
- Lamp Out Indicator
- Low Fuel Lamp/Indicator
- Malfunction Indicator Lamp
- Oil Level Warning Indicator
- Oil Pressure Sender
- Relays and Modules - Instrument Panel
- Seat Belt Reminder Lamp
- Sensors and Switches - Instrument Panel
- Speedometer Head
- Speedometer Module
- Temperature Gauge
- Technical Service Bulletins
- Lighting and Horns
- Backup Lamp
- Brake Lamp
- Brake Light Switch
- Center Mounted Brake Lamp
- Courtesy Lamp
- Daytime Running Lamp
- Dome Lamp
- Fog/Driving Lamp
- Hazard Warning Lamps
- Headlamp
- Hi-Beam Indicator Lamp
- Horn
- Key Cylinder Lamp
- Lamp Out Indicator
- License Plate Lamp
- Map Light
- Marker Lamp
- Parking Lamp
- Relays and Modules - Lighting and Horns
- Sensors and Switches - Lighting and Horns
- Tail Lamp
- Trunk Lamp
- Turn Signals
- Description and Operation
- Testing and Inspection
- Service and Repair
- Diagrams
- Technical Service Bulletins
- Windows and Glass
- Wiper and Washer Systems
- Locations
- Diagrams
- Diagram Information and Instructions
- Exploded Views
- Connector Views
- Connector Identification
- Amplifier, Sound System
- Antenna Motor
- Antenna Relay
- Antenna, Radio
- Antilock Brakes / Traction Control Systems
- Antitheft and Alarm Systems
- Audible Warning Device
- Automatic Transmission/Transaxle
- Backup Lamp
- Brake Lamp
- Center Mounted Brake Lamp
- Charge Lamp/Indicator
- Charging System
- Cigarette Lighter
- Clock
- Compact Disc Player (CD)
- Courtesy Lamp
- Cruise Control
- Cruise Control Indicator Lamp
- Daytime Running Lamp Control Unit
- Door Locks
- Door/Trunk Ajar Indicator/Lamp
- Fog/Driving Lamp
- Fuel Gauge
- Hazard Warning Lamps
- Headlamp
- Headlamp Washer Motor
- Heating and Air Conditioning
- Hi-Beam Indicator Lamp
- Horn
- Instrument Cluster / Carrier
- Key Cylinder Lamp
- License Plate Lamp
- Low Fuel Lamp/Indicator
- Malfunction Indicator Lamp
- Marker Lamp
- Multiple Junction Connector
- Oil Level Warning Indicator
- Parking Lamp
- Power Mirror Motor
- Power Mirror Switch
- Power Steering Pressure Control Valve
- Power Window Motor
- Power Window Switch
- Powertrain Management
- Radiator Cooling Fan Motor
- Radio/Stereo
- Rear Defogger
- Seat Belt Reminder Lamp
- Seat Belt Systems
- Starting System
- Steering Control Module
- Sunroof / Moonroof Motor
- Sunroof / Moonroof Relay
- Sunroof / Moonroof Switch
- Suspension
- Tail Lamp
- Temperature Gauge
- Trunk Lamp
- Turn Signals
- Washer Fluid Level Indicator
- Windshield Washer Motor
- Wiper Motor
- Electrical Diagrams
- Power and Ground Distribution
- Amplifier, Sound System
- Antenna Motor
- Antenna Relay
- Antenna, Radio
- Antilock Brakes / Traction Control Systems
- Antitheft and Alarm Systems
- Audible Warning Device
- Automatic Transmission/Transaxle
- Charge Lamp/Indicator
- Charging System
- Cigarette Lighter
- Clock
- Compact Disc Player (CD)
- Cruise Control
- Cruise Control Indicator Lamp
- Door Locks
- Door/Trunk Ajar Indicator/Lamp
- Fuel Gauge
- Headlamp Washer Motor
- Heating and Air Conditioning
- Instrument Cluster / Carrier
- Lighting and Horns
- Low Fuel Lamp/Indicator
- Malfunction Indicator Lamp
- Oil Level Warning Indicator
- Power Mirror Motor
- Power Mirror Switch
- Power Steering Pressure Control Valve
- Power Window Motor
- Power Window Switch
- Powertrain Management
- System Diagram
- Computers and Control Systems
- Emission Control Systems
- Fuel Delivery and Air Induction
- Ignition System
- Radiator Cooling Fan Motor
- Radio/Stereo
- Rear Defogger
- Seat Belt Reminder Lamp
- Seat Belt Systems
- Starting System
- Steering Control Module
- Sunroof / Moonroof Motor
- Sunroof / Moonroof Relay
- Sunroof / Moonroof Switch
- Suspension
- Temperature Gauge
- Washer Fluid Level Indicator
- Windshield Washer Motor
- Wiper Motor
- Mechanical Diagrams
- Fluid Diagrams
- Vacuum and Vapor Hose Diagrams
- Components
- Connectors
- Specifications
- Electrical Specifications
- Mechanical Specifications
- Alignment
- Alternator
- Automatic Transmission/Transaxle
- Backing Plate
- Brake Caliper
- Brake Drum
- Brake Hose/Line
- Brake Rotor/Disc
- Brake Shoe
- Clutch, M/T
- Compressor HVAC
- Computers and Control Systems
- Cooling System
- Drive Axles, Bearings and Joints
- Emission Control Systems
- Engine
- Exhaust System
- Flex Plate
- Flywheel
- Ignition System
- Manual Transmission/Transaxle
- Parking Brake System
- Starter Motor
- Steering
- Suspension
- Turbocharger
- Wheel Cylinder
- Wheel Speed Sensor
- Wheel Stud / Lug Nut
- Pressure, Vacuum and Temperature Specifications
- Capacity Specifications
- Fluid Type Specifications
- Technical Service Bulletins
Diagnostic Trouble Codes
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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