Warning! The voltage in electronic ignition systems is significantly higher than the voltage in conventional ignition systems. Extreme caution must be exercised when working on the system with the ignition on. People with a surgically implanted pacemaker are prohibited from performing repair work on the ignition system.
In case of problems with the engine management system (fuel injection/ignition) make sure first of all that the cause is not electrical contacts. Check if the air filter is clogged, make sure the spark plugs are in good condition and set correctly, that the breather hoses are not damaged (see the relevant Chapter). Also check the correct adjustment of the accelerator cable. If the engine runs intermittently, check the compression and valve clearances. If after the checks you have not found the cause of the malfunction, it is necessary to have the car tested by specialists at a service station. The connector of the electrical wiring unit is in the engine control circuit, to which a special diagnostic tester can be connected. The tester will quickly determine the malfunction, eliminating the need for individual testing of system components and, along with it, the possibility of damaging the ECU. With the right diagnostic equipment, you can test the engine management system to the maximum extent possible.
The checks that you can do yourself are the spark plug checks. If necessary, you can also check the wiring and wire connections by first disconnecting the ECU clamp with the ignition off.
The ignition system is checked at a car service center. You can check the condition of the connectors, wires and spark plugs yourself.
[Material copied from this portal: www.OpelBook.ru]
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