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Wasted spark ignition
Coil on plug style wasted spark transformers, so (beside the 2 pin power-input connection) each transformer has 2 HV connections
- one directly to sparkplug
- and the other to the cylinder-pair (1-4 and 2-3).
The transformer cores are firghtening small. We are checking if they are surely ment for inductive (not CDI) operation.
Each transformer has 2 pins, that means it cannot be "active coil". So the inputs are power-inputs for sure.
type:
- NEC 000130 5009
- 0040 100 502 0000
- Beru Korea
Similar type with slightly shorter HV connection:
- NEC 100730
- MB029700-8230
- 12V GCL209
- DENSO SPAIN
- 5009
The 12V is promising, why would a CDI coil have 12V printed on it ?
Also, the engine was running with the 2nd transformer, with shorter than 3ms dwell (2.5 ms was used ? guesstimated without measurement). But with the shorter HV connection, the spark sometimes happened at the wrong end of the sparkplug.
The engine didn't start since the first (Beru) coils are on (with the longer HV connection).