Mazda 323

since 1985 of release

Repair and car operation

Mazda 323

+ Introduction
+ Petrol engines
+ System of greasing of the engine
+ System of cooling of the engine
+ ignition System
- Power supply system, carburetor, system of injection of fuel
   Purity rules at work with a power supply system
   Removal and sensor installation/check in a fuel tank
   Removal and installation of a fuel tank
   Removal and installation of the fuel pump
   Removal and installation/check of the fuel pump
   Removal and installation of the air filter
   + Carburettor
   + System of injection of fuel
+ Diesel engine
+ System of production of the fulfilled gases
+ Coupling
+ Manual transmission
+ Automatic transmission
+ Suspension bracket and steering system
+ Brake system
+ Wheels and tires, body, car coloring, care of the car
+ electric equipment System
+ Heater, lighting system, devices
+ Governing bodies and operation receptions
+ Electric circuits

Removal and sensor installation/check in a fuel tank

The sensor of level is screwed in above in a fuel tank. At fall of level of fuel in the sensor the float falls. Thus at the expense of sliding contact on a float resistance of the sensor increases. Because of it tension on the index falls, and the arrow falls in the direction "Is empty". If the float continues to fall, on some models in a certain situation alarm contact becomes isolated and on a guard of devices the alarm lamp of a reserve stock of fuel lights up. The fuel level sensor should be checked, if the index of level of fuel on a guard of devices shows too high, too low or at all does not show fuel level.

Models with a full drive have two divided fuel level sensors. The fuel level sensor of the fuel pump is in the left half of a tank, depending on the movement direction, the sensor of the auxiliary pump is in the right half of a fuel tank, also looking forward in the movement direction. At emergence of malfunctions it is necessary to check both sensors.

Check condition: All electric wires should be checked on current course according to an electric circuit, cm Head electric equipment System.

At removal of the sensor a fuel quantity can act. Pairs of fuel are poisonous, therefore it is necessary to provide good ventilation of a room. To avoid fuel hit on skin. To work in toplivostoyky mittens. Not to work near open fire! To keep in readiness the fire extinguisher!



    To disconnect a weight cable from the battery.

Data from memory of malfunctions of the engine or protective code of a radio receiver are thus erased. Before shutdown of the battery it is necessary to read instructions in the Section Removal and battery installation.

    To remove a back seat, see. Head of the Wheel and tire, body, car coloring, care of the car.
    To unscrew a cover of the fuel pump and to disconnect the tip.
    To weaken shlangovy collars and to disconnect fuel hoses. For simplification of installation to mark hoses with a sticky tape. To weaken bolts of fastening of the fuel level sensor. To delay the sensor up, to incline aside and to take out. Thus to enclose a rag and to collect following fuel.



    Holding the sensor in adjusting situation to measure by an ohmmeter resistance in specified provisions of a float. Models to 9/89 g вып.: To connect an ohmmeter to plugs and and b on the tip.
    Situation corresponds to degree of fullness of a fuel tank. "0" corresponds to an empty tank, "1/2" corresponds to half filled tank, situation "1" corresponds to a full tank.

Demanded values

Model Float level in mm Resistance in Ohm
1 1/2 0
from 9/89 g вып. 117 3
__ __
0 110
Compact from 10/89 g вып. 104,2 3
50,8 32,5
0 110
Sedan, hatch-back from 10/89 g вып. 118 3
58,7 32,5
0 110
Full drive, Sensor of the fuel pump 158 0 — 2,5
118 7,3 — 13,3
0 72,1 — 82,1
Full drive, Sensor of the auxiliary pump 157 0 — 2,5
112 7,3 — 13,3
0 29,9 — 35,9

If value does not correspond demanded, it is necessary to replace the fuel level sensor.



    To insert the sensor with new laying. To establish the sensor and to tighten fastening bolts. To put on топливопроводы according to marking and to fix collars. To connect the tip and to screw a cover. To establish a back seat, see. Head of the Wheel and tire, body, car coloring, care of the car. To connect a weight cable to the battery. If are available, to establish time on hours and to set a protective code of a radio receiver. To check work of the index of level of fuel on the dashboard.