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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Mazda 626 (from 1991 to 1998, the year of issue)

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Mazda 626
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Mazda
626
Instructions
Maintenance
Engines
Heating and ventilation
Fuel system
An exhaust system
Exhaust system
Systems of decrease in toxicity of exhausts and management of engine work
Introduction
The system self-diagnostics and fault codes
The central control unit
Throttle Position Sensor
Air Flow Sensor
Inlet air temperature sensor
Coolant temperature
The crankshaft position sensor
Camshaft position sensor
Switch system hydrostrengthening steering
Oxygen sensor
The gauge of detonation combustion of fuel
Speed sensor
Air valve
System of additional giving of air at low speeds
Crankcase Ventilation System
EGR
Fuel vapor collection system
The switch of fires of a stoplight
Catalytic Converter
Transmissions
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Air valve



Location of the air valve of system of idling (model with a 4-cylinder engine)

Location of the air valve of system of idling (model with a 6-cylinder engine)

The air valve controls the flow of air into the engine idling adjusting thus the idle speed.

Check

PERFORMANCE ORDER
1. Attach the tachometer. Start the engine and raise the number of turns to 3000. Wait join radiator cooling fan and measure the speed of the engine at idle (all electric vehicle must be turned off). If the idle speed is too low, disconnect the connector connecting the air valve. The speed of the motor should begin to fluctuate after disconnecting the connection of the valve. If not, probably faulty valve.
2. Measure the resistance between the terminals of the valve. It should be 7,7-9,3 Ohm (models with four-cylinder engine), 10,7-12,3 Ohm (models with six-cylinder engine 1993-1997 of release) or 8,7-10,5 Ohm (models with six-cylinder engine 1998 release). Replace the valve if necessary.

Replacement

PERFORMANCE ORDER
1. Disconnect the connection of the valve, unscrew the screws and remove the valve.
2. Installation is spent upside-down removals. Replace the O-ring of the valve.




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System of additional giving of air at low speeds

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