Engine runs rough - unsteady engine running
This problem occurs mostly in engines with electronically controlled injection systems. Irregular / restless engine running can arise for various reasons.
Likely reasons/recommendations
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In the event of incorrect operation of the idle speed controller, the air mass meter or the throttle valve potentiometer
the subgroups mentioned above must be replaced.
- If air is sucked into the system.
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In the event of a malfunction in the fuel system:
For clogged / contaminated injectors / injection nozzles where deposits have already formed. In this case we recommend the XADO Multi Cleaner - injectors and fuel system cleaner to use.
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In the event of a malfunction in the ignition system.
Is a candle, ignition cable, ignition coil diagnosis is necessary.
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When the engine electronic control unit malfunctions.
The ECU cannot process the correct signal for the normal operation of the injectors / injectors. A professional diagnosis in a workshop is necessary.