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Bosch motorsport DIS coil for 6 cilinder engines


  • pin1 : input
  • pin2 : input
  • pin3 : input
  • pin4 : +12V supply


Mating connector: D 261 205 351-01


The connector is numbered. The order of inputs is the same as the order of output pairs (mechanically). IMPORTANT: Unused high-voltage outputs MUST BE grounded. Eg when only 5 high-voltage spark outputs are used, than 6th MUST BE grounded. (eg. audi 5cyl with 12453 firing order: cyl2,5 paired; cyl3,4 paired and cyl1 has no pair-cylinder, but the unused HV output grounded). 
You can verify the pinout easily by DVM (200 Ohm measurement range). The resistance between an input pin and the supply pin is lower (measures 0.5 .. 1.3 Ohm) than the resistance between two input pins ( 1 .. 1.9 Ohm). Theoretically resistance is twice as high, but the resistance of the DVM cables (about 0.3 .. 0.7 Ohm) is in the circuit during measurement.

Bosch ignition coil 6 cil wasted spark