The engine should be started only from a 12 V battery or from an external power source.
Do not disconnect the battery while the engine is running.
When fast charging, disconnect the battery from the vehicle's electrical system.
Before checking the injection system, make sure that the ignition system is in order, i.e. the ignition timing and spark plugs comply with the specification requirements.
When the car temperature is above 80°C (for example, drying after painting) remove the computer.
Check the reliability of the connection of all connectors.
Do not disconnect or connect computer connectors when the ignition is on.
When checking compression, disconnect the fuel pump relay.
Multec injection system
1 - ALDL diagnostic connector (in Vectra cars it is located on the left rear in the engine compartment near the octane number coding connector)
2 - computer
3 - fuel pump relay (in Vectra cars it is located in the relay block near the left shock absorber strut)
4 - stepper carburetor throttle motor
5 - nozzle
6 - throttle potentiometer
7 - "parking/neutral" switch
8 - distance traveled sensor (in Vectra cars it is located near the dashboard)
9 - coolant temperature sensor
10 - intake manifold pressure sensor
11 - fuel pressure regulator
12 - ignition distributor
13 - Lambda probe connector
14 - lambda probe
(Original posted on the website: OPELBOOK)
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