I’d like to run a common BOSCH F000SZ0210 coil with my EMU Black. This 4 cylinder waste spark coil is used on many Golf IV and alike engines by Seat, Audi, etc.
Has someone here used this coil successfully with the EMU Black.
There’s a strong rumor it needs a pullup or pulldown to be used. Unfortunately I did not find specifics on that. Ecumaster claims it should run ok on the Black, however I’d like to confirm by users that have actually run it.
This is the most classic coils used in aftermarket ECUs back in the Day. KMS used to sell them overpriced for their ECUs with their own badge.
Standard VAG ECUs from this era (e.g., Bosch Motronic) strictly output a 5V signal for ignition triggering. Using a 12V trigger is considered "out of spec. Some users in have reported that 12v “works,” noted that a 5V signal produces a noticeably stronger spark and that 12V can lead to premature failure due to electrical stress of the amplifier stage.
Dwell Time 2.5ms – 3.0ms, higher can burn the primary windings prematurely.