What are the causes of multi-cylinder misfire in the EA888 engine?

[Denise]

The possible causes of multi-cylinder misfire in the EA888 engine are as follows: 1. Spark plugs: Poor contact in the spark plugs can lead to momentary ignition failure, resulting in cylinder misfire. 2. Self-induced voltage: Excessive self-induced voltage in the fuel injector can cause sticking in the next working cycle. 3. Poor heat dissipation: Inadequate heat dissipation in the computer board's internal transistors can lead to ignition coil failure. 4. Insufficient pressure: Low cylinder pressure can cause ignition failure. The repair methods for multi-cylinder misfire include: 1. Circuit inspection: Check for aging circuits or exposed wires causing leakage. Repair or rewire after confirmation. 2. Component inspection: If internal components of the ignition coil or spark plugs are damaged, replace them after confirmation.