Vehicle power and exhaust system Opel Astra H

Specifications
General parameters Fuel See Specifications for Chapter 1 . Fuel tank See Specifications for Chapter 1 . Specific fuel consumption/CO ₂ emissions Cm....

Power supply system. General information and safety precautions
General information 1. The fuel system of any internal combustion engine consists of a fuel supply system and an air supply system. 2. The main elements of the...

Relieving pressure in the fuel system of gasoline engines
1. When the engine is running, high pressure is created inside the fuel system for the normal functioning of the fuel injection system (3.8 bar, and for some...

Checking the condition and replacing fuel lines and their fittings
Attention: Observe safety precautions ( see Section 1 ). See also Chapter 1, Section 9 . 1. The fuel lines of the fuel system are laid between the fuel tank...

Removal air from the fuel system of a diesel engine
1. Air is removed from the fuel supply system automatically, which explains the absence of a manual fuel pump. 2. The need to remove air arises after...

Removal dirt and water from the fuel system of a diesel engine
1. The fuel system, especially of diesel engines, is very sensitive to the ingress of even small foreign particles and water. 2. Abrasive particles, in...

Removal and installation air intake tract components
Removal 1. The general connection diagram of the air supply system intake tract components is shown in the accompanying illustration. Basically, the fastening...

Removal and installation the gas pedal
1. Fuel supply to the engine cylinders is controlled by the ECM, which receives an electrical signal from the gas pedal position sensor installed on the pedal...

Removal and installation the fuel pump
Note: A new fuel pump cover O-ring will be required during installation. General information 1. The electric fuel pump together with the fuel level sensor is...

Removal and installation the fuel level sensor
1. The fuel flow sensor consists of a measuring float and a potentiometer. When the fuel level drops, the sensor float also drops, and the potentiometer...

Removal and installation the fuel filter mounting clamp (diesel models)
Note: The procedure for removing the fuel filter to replace the filter element is described in Chapter 1, Section 8 . 1. The fuel filter of the diesel engine...

Removal and installation glow plugs (diesel engines)
1. Due to the good starting characteristics of diesel engines with direct fuel injection, the need for preheating the combustion chambers only arises at...

Removal and installation the fuel tank
Note: Depending on the model, the procedure for removing the tank may differ slightly from the one below, but these differences are not essential. 1. Release...

Gasoline Engine Management System. General Information and Precautions
General information 1. Electronic control system (see accompanying illustration) the engine regulates the amount of fuel supplied to the cylinders and controls...

The operating principle of fuel injection systems
Even at the dawn of automobile manufacturing, when designing internal combustion engines, the dependence of combustion efficiency and, accordingly, the return...

Removal and installation of fuel injectors
1. Below is a description of how to remove the injectors for the Z16XEP engine. For other engines, except for the Z22YH engine, this procedure is similar, but...

Diesel Engine Control System. General Information
Caution: When performing maintenance or replacing components of the fuel supply system, observe the appropriate safety precautions ( see Section 1 )! 1. The...

Removal and installation fuel injectors
Caution: Do not allow dirt to enter the fuel system tract! Caution: Remember that injectors are precision equipment and must be handled with extreme care! 1....

Removal and installation of fuel injection pump
Caution: Do not allow dirt to enter the pump and fuel lines! Engine Z17DT(H/L) 1. Disconnect the cable from the negative terminal of the battery ( see Chapter...

Turbocharger and Intercooler — General Information
1. The turbocharger is designed to increase engine power by increasing the mass charge of air entering the engine cylinders. Air is supplied to the cylinders...

Particulate filter (engines with a working volume of 1.9 l)
The soot filter is designed to clean exhaust gases from soot. Over time, when the vehicle is in use, soot particles accumulate in the filter. Using a...

Exhaust system. General information
1. The exhaust system of all models under consideration consists of three sections: intake, middle (intermediate) and rear. The main elements of the system...

Emission Control Systems — General Information
In order to reduce the level of emissions into the atmosphere of toxic components that enter the engine exhaust gases as a result of evaporation and incomplete...

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