Fuel system (carburetor) Opel Vectra A (petrol)

Carburetor fuel system specifications
General characteristics Fuel tank capacity - 61.0 liters Fuel octane number: Leaded - 98 RON Unleaded - 95 RON Carburetor type (all models) — Pierburg 2E3 Air...

General description of the carburetor fuel system
The fuel system on all carburetor models includes a fuel tank, a fuel pump, and a vapor separator (only 1.6 and 1.8 liter models), falling flow carburetor, air...

Fuel system — precautions
1. Some adjustment points in the fuel system are protected by plugs, caps or seals. Do not remove the plug on a vehicle that is still under warranty. 2. When...

Air filter — removal and installation
Removal 1. Remove the air cleaner element as described in Section 1 . 2. Release the crankcase ventilation hose from the plastic clip on the left side of the...

Inlet Air Temperature Control — Description and Testing
Description 1. The air filter has thermal control, the air is heated to the temperature most suitable for combustion with minimal exhaust emissions. 2. The...

Fuel pump — check
Note: Before you begin, see. Chapter 2 . 1. Disconnect the low voltage wire from the ignition coil. 2. Wrap a clean cloth around the pump outlet, then...

Fuel pump — removal and installation
Note: Before you begin, see. Chapter 2 . Removal 1. The fuel pump is located at the rear right end of the camshaft housing. 2. Disconnect the negative cable...

Fuel tank — removal, inspection and installation
Note: Before you begin, see. Chapter 2 . Removal 1. Disconnect the negative cable from the battery. 2. Pump out all remaining fuel from the tank through the...

Fuel level sensor unit — removal and installation
Note: Before you begin, see. Chapter 2 . Removal 1. Disconnect the negative cable from the battery. 2. Pump out all remaining fuel from the tank through the...

Fuel vapor separator (1.6 and 1.8 liter models) — removal and installation
Note: Before you begin, see. Chapter 2 . Removal 1. The fuel vapor separator is located on a bracket attached to the side of the carburetor. 2. Note the...

Gas pedal — removal and installation
Removal 1. Working inside the passenger compartment, remove the lower trim panel in the driver's footwell. 2. Pull the cable support off the bracket on top of...

Throttle Cable — Removal, Installation and Adjustment
Removal 1. On early models, remove the air cleaner. On later models, disconnect the main air duct from the air cleaner, then disconnect the vacuum pipe and...

Carburetor — General Description
1. Carburetor Pierburg 2E3 - two-chamber, with fixed jets and a sequential throttle valve. Only one primary throttle valve operates (except at high engine...

Carburetor — removal, overhaul and installation
Note: Before you begin, see. Chapter 2 . Use new gaskets when installing the carburetor. A tachometer and exhaust gas analyzer are required to check the idle...

Idle speed and mixture — adjustment
Note: Before you begin, see. Chapter 2 For precise adjustment, you will need a tachometer and an exhaust gas analyzer (cO meter). 1. To check the idle speed...

Needle and float — removal, inspection and installation
Note: Before you begin, see. Chapter 2 . When reassembling, use a new carburetor top cover gasket. To check the idle speed and mixture, you will need a...

Secondary Throttle Valve Vacuum Diaphragm — Checking, Removing and Installing
Note: The diaphragm assembly must be replaced as a whole, there are no separate parts. Examination 1. If a vacuum source with a gauge is available, apply...

Economizer valve diaphragm — removal and installation
Note: Before you begin, see. Chapter 2 . Removal 1. Disconnect the negative cable from the battery. 2. On early models, remove the air cleaner. On later...

Accelerator pump — checking, removal and installation
Note: Before you begin, see. Chapter 2 . Examination 1. When performing this test, it is necessary to supply fuel to the float chamber from a small reservoir....

Automatic air damper unit — removal, installation and adjustment
Note: Before you begin, see. Chapter 2 . A tachometer and exhaust gas analyzer will be required to check idle speed and mixture. If the cooling jacket was...

Automatic Air Damper Pull-Down Vacuum Blocks — Removal, Installation and Adjustment
Main diaphragm block Note: Before starting work, see Chapter 2. A new star bracket must be used when installing the diaphragm unit. Check the vacuum chambers...

Carburetor filter — removal and installation
Removal 1. A small tubular filter gauze is installed in the top cover of the carburetor. 2. To clean the fuel and prevent clogging or other problems due to...

Throttle Damper (Automatic Transmission Models) — Adjustment
1. Remove the air filter or air block, following the Chapter 3 . 2. Check that the lever (see illustration) was in the idle position. 3. Loosen the lock nut,...

Throttle Position Sensor (Automatic Transmission Models) — Removal and Installation
Removal 1. Disconnect the negative battery cable. 2. Disconnect the electrical wiring from the sensor. 3. Unscrew the two mounting screws, or remove the sensor...

Idle Speed Increase Valve
Examination 1. Some models are equipped with an idle speed increase valve that is attached to the side of the carburetor. 2. To check the operation of this...

Idle Air Cutoff Valve (1.8L Models) — Description and Testing
Note: Before you begin, see. Chapter 2 . Description 1. On 1.8 liter models, the carburetor is equipped with an idle cut-off valve. This is an electrically...

Intake manifold — removal and installation
Note: Before you begin, see. Chapter 2 . Use a new manifold gasket when installing. Removal 1. Disconnect the negative cable from the battery. 2. Drain the...

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