Well I disassembled it
It's so complex unit, they use sliver molded and some selecon melt which is impossible to repair. there was a failing silver wire (actually a capillary wire) that is originallt melted with the selecon. No handy tool would fix it, it's all a factory made. In Kuwait 90% of its failure is that capillary wire. I also changed the ignition coil with a new one as recommended.