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1990 Mercedes-Benz 500SL, Ignition Photo
Posted to the Waveform Library on 1/17/2019

This its the pattern from Pin 1 connector A which will not fire either coil. This pattern is the same from all 3 ignition units I have tried.

 

car Vehicle Data

1990 Mercedes-Benz 500SL 5.0L

Engine5.0 L / 8 cyl / GAS
Trans4-speed AutomaticTransmission
DeliveryFuel Injection
SubsystemIgnition
Component
ConditionKnown Bad

car Vehicle Data

1990 Mercedes-Benz 500SL 5.0L

Engine5.0 L / 8 cyl / GAS
Trans4-speed AutomaticTransmission
DeliveryFuel Injection
SubsystemIgnition
Component
ConditionKnown Bad