- Are all connectors in the area of the ignition module DI5 correctly connected?
- Cracks in the housing of the DIS ignition module, burn marks from jumping sparks?
- Plug-in connection with inductive encoder or camshaft position sensor OK (16V)? If necessary, remove the sensor and check if it is dirty on the front side. Clean up.
- Are the connectors on the control box firmly fixed? Perhaps one pin has moved in the multi-pin connector?
- As a last resort, only a complete check of the ignition system will help.
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