Knocking combustion
Knocking combustion indicates fuel or ignition problems.
Costs
Every car issue can be caused by different things. Here are the most common ones
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Most Expensive
Moderate costs
Moderate costs
Moderate costs
Moderate costs
Moderate costs
Moderate costs
Cheapest case
Discussions
User of our Carly Community asked the following questions regarding that fault:
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Details
Probability
Based on the values and symptoms you have entered, a crude estimation of the probability of this problem can be made
HIGH
Typical consequences
If this defect is detected, it may lead to the following problems:
- Engine damage
- Failure of the exhaust emission test (Failure to pass the exhaust emission test)
Function of knock control
Knocking combustion indicates premature spontaneous ignition of the fuel.Knock sensors detect the noise, causing the engine control unit to adjust the ignition. Super knock, which occurs mainly in modern turbocharged engines, deserves special attention. It is caused by foreign matter in the combustion chamber that significantly increases combustion pressure.
Unlike normal knocking, super knocking cannot be corrected by ignition adjustments.Instead, the engine control unit reduces engine power and shuts down fuel injection to the affected cylinder to prevent possible engine damage.