Skoda Felicia

since 1994 release

Repair and operation of the car


Skoda Felicia
+ Cars of the Skoda Felicia brand
+ Maintenance instruction
+ Routine maintenance
+ Repair of the engine
+ Cooling systems, heating
- Power supply system
   + Power supply system of the carburetor engine of 1.3 l
   - System of the central injection (SPFI) of the petrol engine
      General information and precautionary measures
      Removal and installation of assembly of the air cleaner
      The vacuum switch of the control unit temperature of the soaked-up air
      Removal, installation and adjustment of a cable of an accelerator
      Removal and installation of components of the Bosch Mono-Motronic system
      Removal and installation of assembly of a gasoline pump and sensor of fuel consumption
      Removal and installation of the fuel tank
      Dumping of residual pressure in a power supply system
      Removal and installation of the inlet pipeline
      Check of functioning and adjustment of system of injection
      Unleaded fuel - the general information and rules of use
   + System of the distributed injection (MPFI) of the petrol engine
   + Power supply system of the diesel engine
   + Systems of decrease in toxicity and production of the fulfilled gases
+ Engine electric equipment
+ Coupling
+ Transmission
+ Power shafts
+ Brake system
+ Suspension bracket and steering
+ Body and finishing of salon
+ Onboard electric equipment


Removal and installation of components of the Bosch Mono-Motronic system

Scheme of electric connections of components of the Bosch Mono-Motronic system

1 — From the ignition lock plug 15
2 — the l-probe
3 — the RPM meter of a bent shaft
4 — the Sensor of temperature of cooling liquid
5 — the Sensor of provision of a butterfly valve (TPS)
6 — the Sensor of temperature of the soaked-up air (IAT)
7 — the Output signal to a tachometer
8 — Grounding of the RPM meter
9 — ECU Grounding
10 — Grounding of the l-probe

11 — Grounding of the trailer sensor switch
12 — ECU Grounding
13 — the Block of system of ignition
14 — the Diagnostic socket
15 — the gasoline pump Relay
16 — the Step motor of management of the provision of a butterfly valve
17 — a fuel injection Injector
18 — the Valve of system of catching of fuel evaporations
19 — the Operating signal from the l-probe
20 — From the plug 30 of the diagnostic socket


Components of the top half of the case of a throttle

1 — the Top section of the case of a throttle
2 — the fuel pressure Regulator
3 — the Sealing ring
4 — the Fixing washer (is established not on all models)
5 — Sealing laying
6 — the Screw of fastening of an injector of the IAT injection/sensor
7 — the IAT Sensor

8 — a fuel injection Injector
9 — Nipple connection of the line of supply of fuel
10 — Sealing laying
11 — Nipple connection of the line of return of fuel
12 — the Sealing washer
13 — the Union of a fuel hose


See the preventions provided in the Section the General information and precautionary measures.


The scheme of connection of components of the Bosch Mono-Motronic system is submitted on an illustration.

Throttle case

REMOVAL

 PERFORMANCE ORDER

1. Remove assembly of a casing of the air cleaner (see the Section Removal and installation of assembly of the air cleaner).
2. Dump residual pressure in a power supply system (see the Section Dumping of Residual Pressure in a power supply system), then disconnect a negative wire from the battery.
3. Disconnect from unions on a wall of the case of a throttle of the line Mark hoses according to the real direction of a stream of fuel (see arrows on illustrations).

4. Disunite electric sockets on throttle cases. Mark as appropriate electrical wiring plaits.

5. Disconnect from the throttle case an accelerator cable (see the Section Removal, installation and adjustment of a cable of an accelerator).

6. Turn out through bolts (A) of fastening of the case of a throttle to the inlet pipeline. Remove throttle cases from the pipeline and remove laying (if that is provided). Without real need it is not necessary to dismember throttle cases - its half fasten among themselves by means of internal through bolts (In). If such partition is made, do not forget to replace sealing laying.

INSTALLATION

 PERFORMANCE ORDER

Installation is made upside-down. Do not forget to replace sealing laying and to track reliability of tightening of fixture. In conclusion adjust an accelerator cable tension (see the Section Removal, installation and adjustment of a cable of an accelerator).


Fuel injection injector

REMOVAL

 PERFORMANCE ORDER

1. Remove an air cleaner casing (see the Section Removal and installation of assembly of the air cleaner).
2. Dump residual pressure in a power supply system (see the Section Dumping of Residual Pressure in a power supply system), then disconnect a negative wire from the battery.
3. Disconnect an electrical wiring from an injection injector.

4. Turn out the screw and uncover an injector/casing of the sensor of temperature of the soaked-up air (IAT). Remove laying.

5. Remove a fixing washer (if that is provided), then take an injector from the throttle case. Remove sealing rings.
6. By means of a universal tester measure the electric resistance of an injector compare result of measurement to requirements of Specifications.

INSTALLATION

 PERFORMANCE ORDER

Installation is made upside-down. Do not forget to replace sealing rings and laying. Grease a carving of fixing screws before installation with suitable sealant. All fixture drags on with the required effort.


The sensor of temperature of the soaked-up air (IAT)

 PERFORMANCE ORDER

The IAT sensor is built in in a fuel injection injector cover, the description of procedures of