Power supply and engine management system Skoda Rapid 1

Power system — appearance (1.2L MPI engine)
1. Vacuum control valve (forced exhaust gas recirculation system PCV) 2. Fuel injectors 3. Solenoid valve 1 of the activated carbon tank 4. Engine speed sensor 5. Intake manifold air pressure sensor and intake air...

Measuring the amount of fuel injected (1.2L MPI engine)
Note. Necessary special devices, control and measuring instruments, as well as auxiliary means: Remote control device, for example (VAG 1348/ZA). Adapter (s). (V.A.G 1348/3-2). Digital potentiometer, (V.A.G 1630)....

Ignition system (1.2L MPI engine)
1. Ignition coil with output power stage 2. Ignition coil wiring harness connector 3. Knock sensor wiring harness connector 4. Knock sensor mounting bolt, tightening torque during installation 20 Nm 5. Knock sensor 6....

Removal and installation of ignition coils — removal and installation (1.2L MPI engine)
Note. Necessary special devices, control and measuring instruments, as well as auxiliary means: Assembly tool "T10118". Puller "T10094A". Removal 1. Install the "T10094A" puller on the ignition coil with the final power...

Fuel tank — external view (1.2L MPI engine)
1. Fuel tank assembly 2. Sealing ring 3. Fuel pump module assembly 4. Mounting nut 5. Return line of the fuel line 6. Fuel pressure line 7. Bypass hose 8. Lid 9. Fuel filler cap 10. The "mass" connection 11. Sealing...

Pumping fuel from the fuel tank (1.2L MPI engine)
Note: If the fuel pump fails, the fuel must be sucked out using a fuel suction device (VAS 5190). Note: Observe cleanliness rules when working on the fuel supply or fuel injection system. 1. Remove the rear seat cushion...

Fuel Pump Module Assembly (1.2L MPI Engine)
Removal Note The ignition must be turned off and the key removed from the ignition switch. The fuel tank can be filled to a maximum of 3/4 full. 1. Remove the rear seat cushion assembly (for more details, see the...

Removal and installation the fuel gauge sensor (1.2L MPI engine)
Removal Note: There are two types of fuel gauge sensors installed in vehicles. 1. Remove the fuel pump (see the relevant section in this chapter). 2. Unlock and remove the wires (3) and (4) shown in the figure below. 3....

Fuel tank — removal and installation (1.2L MPI engine)
Removal Note. Necessary special devices, control and measuring instruments, as well as auxiliary means: Stand for removing and installing the engine and gearbox "VAG 1383A". Note: The ignition must be off and the key...

Elements of the power supply and control system (1.2 l TSI engine)
1. Engine oil pressure sensor 2. Solenoid valve 3. Solenoid valve 1 of the activated carbon filter 4. Intake manifold pressure sensor and intake air temperature sensor 5. Fuel pressure regulator valve 6. Knock sensor 7....

Fuel rail and intake manifold (1.2L TSI engine)
1. Charge air duct 2. Fastening bolt, tightening torque during installation 7 Nm 3. Locking clamp 4. Fuel rail 5. Fuel pressure sensor 6. Fuel rail mounting bolt, tightening torque during installation 20 Nm 7....

Removal and installation the throttle valve (1.2 l TSI engine)
Removal 1. Loosen the mounting screws (1) shown in the figure below, then detach the mounting clamp. 2. Disconnect the wiring harness connector (2) from the boost pressure sensor G31 with the intake air temperature...

High pressure fuel pump — external view (1.2 l TSI engine)
1. Fastening bolt tightening torque during installation 15 Nm 2. Fuel hose (low pressure, with spring clamp) 3. Spring clamp 4. Union nut, 25 Nm (when loosening, hold the connection pipe on the high pressure pump) 5....

High Pressure Fuel Pump — Removal and Installation (1.2L TSI Engine)
Removal Attention. The engine fuel system is divided into a high-pressure section (with a maximum pressure of 12 MPa = 120 bar) and a low-pressure section (with a pressure of approx. 0.6 MPa = 6 bar). Before opening the...

Removal and installation fuel injectors (1.2L TSI engine)
Note. When working on the power supply system, safety precautions must be observed. When working on the power supply system, cleanliness rules must be observed. Before starting assembly work, ensure that safety...

Replacing the Teflon sealing ring and support ring on the fuel injector (1.2L TSI engine)
Note. When working on the power supply system, safety precautions must be observed. When working on the power supply system, cleanliness rules must be observed. Note. Necessary special devices, control and measuring...

Electronic engine control unit (1.2 l TSI engine)
Removal Note. Before you begin replacing the engine control unit "J623", you must first know the identification of the control unit. When replacing, it is necessary to clean the throttle control mechanism "J338" before...

Ignition system — external view (1.2L TSI engine)
1. Wiring harness guide 2. Fastening bolt, tightening torque during installation 8 Nm 3. Lid 4. Wiring harness connector 5. Hall sensor 6. Hall sensor mounting bolt, tightening torque during installation 10 Nm 7....

Lubricating spark plug wire tips (1.2L TSI engine)
Note: New spark plug wires are supplied already lubricated with paste. Apply a thin layer of the caterpillar track paste "G 052 141 A2" along the entire perimeter of the sealing flexible tube of the spark plug wire tip...

Removal and installation the engine speed sensor -G28- (1.2 l TSI engine)
Note. Necessary special devices, control and measuring instruments, as well as auxiliary means: Socket wrench "T10370". Removal 1. Disconnect the wiring harness connector (arrow) from the engine speed sensor "G28" as...

Fuel tank — external view (1.4L TSI engine)
1. Fuel tank assembly 2. Sealing ring 3. Fuel pump module assembly 4. Mounting nut 5. Return line of the fuel line 6. Fuel pressure line 7. Bypass hose 8. Lid 9. Fuel filler neck 10. The "mass" connection 11. Sealing...

Removal and installation the fuel tank (1.4 l TSI engine)
Note: See the relevant section in this chapter (" Petrol engine 1.2 MPI ").

Removal and installation the fuel pump (1.4 l TSI engine)
Note: See the relevant section in this chapter (" Petrol engine 1.2 MPI ").

Checking the technical condition of the fuel pump (1.4 l TSI engine)
Note: Fuel pump performance is checked as part of regulatory diagnostics. 1. Connect the diagnostic, measuring and information system "VAS 505X". 2. Turn on the ignition. 3. On the display, press the buttons for...

Elements of the fuel system — external appearance (1.4 l TSI engine)
1. Brake booster vacuum pump 2. Intake camshaft control valve 3. Fuel injector cylinder #1 4. Fuel injector cylinder #2 5. Fuel injector cylinder #3 6. Fuel injector cylinder #4 7. Brake booster pressure sensor 8....

Throttle Body Assembly — Removal and Installation (1.4L TSI Engine)
Removal 1. Disconnect the vacuum hose from the brake booster (arrow) as shown in the figure below. 2. Loosen the fastening clamps (1) and (2), then remove the air duct pipe shown in the figure below. 3. Disconnect the...

Removal and installation the high pressure pump (1.4 l TSI engine)
Removal Note. When working on the power supply system, safety precautions must be observed. When working on the power supply system, cleanliness rules must be observed. 1. Turn off the ignition and all electrical...

Removal and installation fuel injectors (1.4 l TSI engine)
Note: Before starting assembly work, it is necessary to pay attention to safety measures. Note: The Geflon sealing ring on the fuel injector must be replaced each time the fuel injector is removed. Note. Necessary...

Replacing the Teflon seal and support ring on the fuel injector (1.4L TSI engine)
Note. Necessary special devices, control measuring instruments, and auxiliary means: Tool kit "T10133". 1. Remove the fuel injectors (for more details, see the relevant section in this chapter). 2. Clean the fuel...

Removal and installation the fuel pressure sensor -G247- (1.4 l TSI engine)
Note. Necessary special devices, control and measuring instruments, as well as auxiliary means: Assembly tool "T10118". Socket wrench with square drive 3/8", 27 mm. Removal Note. When working on the power supply system,...

Ignition system — external view (1.4L TSI engine)
1. Spark plug, tightening torque during installation 30 Nm 2. Cable duct (Guide piece) 3. Ignition coils with final power stage 4. Fastening bolt, tightening torque during installation 10 Nm 5. Hall sensor "G40" 6....

Removal and installation ignition coils (1.4 l TSI engine)
Note. Necessary devices, special control and measuring instruments, as well as auxiliary means: Assembly tool "T10118". Puller "T10094". When installing new spark plugs: Lubricating paste "G 052 141 A2". Note. The...

Removal and installation the engine speed sensor (1.4 l TSI engine)
Note. Necessary special devices, control and measuring instruments, as well as auxiliary means: Socket wrench "T10370". Removal Note: The installation location of the engine speed sensor G28 is located under the intake...

Checking the volumetric delivery of the fuel pump (1.6L MPI engine)
Note: The power supply voltage is normal. Remote control device "V.A.G 1348/3A" connected. 1. Unscrew the fuel tank filler cap. 2. Disconnect the fuel supply line (2), drain the leaking fuel into a clean rag. Caution:...

Bleeding the fuel system (1.6L MPI engine)
1. Remove the cover in front of the fuse holder. 2. From the fuse box under the instrument panel, according to the electrical circuit diagrams, remove the fuse responsible for the fuel injectors. 3. Connect the remote...

1.6L MPI Engine Management System Elements — External View
1. Vacuum control valve (forced crankcase ventilation system) 2. Fuel injectors 3. Intake manifold air pressure sensor and intake air temperature sensor 4. Knock sensor 5. Solenoid valve of the activated carbon tank...

Fuel rail with fuel injectors — external view (1.6L MPI engine)
1. Fuel supply hose 2. Fuel rail mounting screw. Tightening torque during installation 7 Nm 3. Retaining clamp 4. Cable duct 5. Fuel rail 6. Air valve 7. Protective cap 8. Bracket 9. Sealing ring 10. Fuel injectors

Fuel Injectors — Removal and Installation (1.6L MPI Engine)
Removal Note: To avoid injury or burns, before starting any work involving the removal of fuel system components, it is necessary to first disconnect the wiring harness connector (arrow) shown in the figure below from...

Fuel injector leak test (1.6L MPI engine)
Caution. The fuel system is under pressure. Before opening the system, place a rag under the connection. Then release the pressure by carefully disconnecting the connection. Note: This work step is only to ensure that...

Checking the injected fuel quantity (1.6L MPI engine)
Note. The fuel supply pressure must be normal. The fuel injectors must be built into the fuel distributor and the fuel line connected. Fuel temperature - 15-20°C; fuel must comply with current standards. 1. Install the...

Ignition system — external view (1.6L MPI engine)
1. Wiring harness connector 2. Ignition coils 3. Knock sensor wiring harness connector 4. Knock sensor 5. Knock sensor mounting bolt, tightening torque during installation 20 Nm 6. Hall sensor wiring harness connector...

Removal and installation ignition coils (1.6L MPI engine)
Removal 1. Place the "T10094 A" puller on the ignition coil with the final power stage in the direction (arrows) as shown in the figure below. 2. Slightly remove the ignition coil with the final power stage from the...

Fuel tank — external view (1.6 TDI engine)
1. Fuel tank 2. Sealing ring 3. Fuel pump module 4. Connecting nut, tightening torque during installation 80 Nm 5. Fuel supply line 6. Drain line 7. Compensation hose 8. Sealing ring 9. Gravity valve 10. Fuel filler cap...

Fuel filter — external view (1.6 TDI engine)
1. Support 2. Fuel filter assembly 3. Fuel supply hose (from fuel preheating valve) 4. Fuel pressure hose (to the high pressure fuel pump) 5. Fastening bolt, tightening torque 20 Nm 6. Fastening bolt, tightening torque...

Removal and installation the fuel filter (1.6 TDI engine)
Removal 1. After releasing the spring clamps, disconnect the fuel hoses from the fuel filter as shown in the figure below. 2. Move the clamping clips outward and remove the fuel filter upward. 3. Press the locking tabs...

Fuel preheating valve connection (1.6 TDI engine)
The return fuel line leading to the fuel tank is blue or has a blue marking. The fuel supply line leading to the fuel filter is white or has white markings.

Removal and installation the fuel heating valve (1.6 TDI engine)
Removal 1. Unlock the lock (arrow) with your finger, as shown in the figure below. Remove the fuel heating valve upwards from the bracket on the expansion tank of the engine cooling system. Installation 1. Move the fuel...

Draining fuel from the fuel filter (1.6 TDI engine)
1. Disconnect the fuel hose from the fuel filter, release the clamp holding it in place, as shown in the figure below. 2. Connect a suitable hose to the fuel filter fitting, as shown in the figure below. Then drain the...

Draining fuel from the fuel tank (1.6 TDI engine)
Note: If the fuel pump fails, the fuel should be pumped out using the fuel suction device "VAS 5190". 1. Remove the rear seat cushion assembly (for details, see the relevant section in Chapter Body ). 2. Lift the fuel...

Removal and installation the fuel pump (1.6 TDI engine)
Removal Note. The fuel tank should not be filled more than 3/4 of its volume. Turn off the ignition and remove the key from the ignition switch. 1. Remove the rear seat cushion assembly. 2. Remove the fuel pump cover...

Fuel level sensor in the tank (1.6 TDI engine)
Removal 1. Remove the fuel pump (for more details, see the relevant section in this chapter). 2. Unlock and disconnect the wiring harness connectors (1) (black), (2) (blue) and (3) (brown), shown in the figure below. 3....

Removal and installation the fuel tank assembly (1.6 TDI engine)
Removal 1. Unscrew the fuel tank filler cap. 2. Cover the fuel tank filler neck opening with a piece of clean foam plastic to prevent any contaminants from getting in. 3. Remove the rear seat cushion and assembly (for...

Checking the operation and supply of the fuel pump (1.6 TDI engine)
1. Remove the fuel pump cover under the carpet. 2. Turn on the ignition. The fuel pump should audibly operate. 3. Turn off the ignition. If the fuel pump does not work 4. First, check that the wiring harness connector...

Fuel pump volume flow control (1.6 TDI engine)
Note. The battery voltage is at least 12.5 V. Fuel filter is normal. The fuel tank is filled to at least ½ of its capacity. The ignition is off. 1. Remove the upper decorative engine cover assembly. Caution: The fuel...

Engine fuel system — external view (1.6 TDI engine)
1. Exhaust gas pressure sensor 1 "G450" 2. Fuel supply pressure sensor "G247" 3. Hall sensor "G40" (camshaft position sensor) 4. Exhaust Gas Temperature Sensor Wiring Harness Connector "G648" 5. Fuel injectors 6. Lambda...

Engine speed sensor — removal and installation (1.6 TDI engine)
Removal Note. Necessary special devices, control and measuring instruments, as well as auxiliary means: Tip "T10370". Assembly tool "T10118". 1. Remove the lower engine compartment protection. 2. Unscrew the fastening...

Fuel rail, fuel injectors and high-pressure fuel pump (1.6 TDI engine)
1. Return fuel lines (to the fuel tank) 2. Fuel pressure regulating valve "N₂76", tightening torque during installation 80 Nm 3. Return fuel lines 4. Fastening bolt tightening torque during installation 10 Nm 5. High...

Removal and installation a piezoelectric fuel injector (1.6 TDI engine)
Removal Note: When working on the power supply system, safety precautions must be observed. 1. Remove the upper decorative engine cover. 2. If present, remove the sound insulation on the fuel injectors. 3. Disconnect...

Removal and installation the fuel rail (1.6 TDI engine)
Removal Note. When working on the power supply system, safety precautions must be observed. Observe the rules of cleanliness. 1. Remove the upper decorative engine cover. Note: The high pressure pump must have a bracket...

Installation of high pressure pipes (1.6 TDI engine)
Note. Necessary special devices, control and measuring instruments, as well as auxiliary means: Socket wrench "T40055". Assembly tool -T104N-. Cleaning and degreasing agent, eg. "D 009 401 04". Protective glasses and...

Replacing the fuel pressure control valve (1.6 TDI engine)
Note. If the pressure in the high pressure fuel circuit is too high, open the regulating valve and some of the fuel from the fuel rail returns through the return fuel line back to the fuel tank. If the pressure in the...

Removal and installation the fuel pressure sensor (1.6 TDI engine)
Note. The fuel pressure sensor "G247" is located in the fuel distributor, measures the actual fuel pressure in the high-pressure system and transmits a voltage signal to the engine control unit "J623". In case of sensor...

Removal and installation the high pressure fuel pump (1.6 TDI engine)
Note. Necessary special devices, control and measuring instruments, as well as auxiliary means: Retaining lever "T10051". Puller "T40064". Drilling device "T40064/1". Trunnions "740064/2". Removal Note: When working on...

High pressure pump pressure tests (1.6 TDI engine)
Note. Necessary devices, special control and measuring instruments, as well as auxiliary means: Hand vacuum pump, e.g. "VAS 6213". Make an "adapter" from the high-pressure fuel line. Condition for exercising control The...

Checking the tightness of the fuel system (1.6 TDI engine)
Note. Necessary devices, special control and measuring instruments, as well as auxiliary means: Cleaning and degreasing agent, eg. "D 009 401 04". Protective glasses and gloves. Attention: When working with the...

Fuel pressure control valve control (1.6 TDI engine)
Note. Necessary special devices, control measuring instruments, and auxiliary means: Suitable auxiliary hose for connection to the fuel return line. Fuel container, approx. 200 ml. Note. The engine is warmed up to...

Fuel injector return quantity control (1.6 TDI engine)
Note: The engine does not start. Note. Leaky starting valves in the injectors can cause the engine to run rough or may result in the engine not starting. To check for contamination of the starting valves, and with this,...

Removal, installation and inspection of glow plugs (1.6 TDI engine)
Note. This engine uses metal glow plugs. Necessary special devices, control and measuring instruments, as well as auxiliary means: Hinged wrench No.10 "3220". Cleaning and degreasing agent, eg. "D 009 401 04"....

Technical condition check (1.2L MPI engine)
Checking oil pressure 1. Remove the oil pressure drop switch and install (V.A.G 1342). 2. Install the oil pressure drop switch-sensor in (V.A.G 1342). 3. Start the engine (engine oil temperature is at least 80°C). oil...

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Rapid 1 (2012-2022)