These are quite rare as a coil type. One note-able engine that uses Passive COPs (Coil on Plugs) are the 90s/00s BMW engines. Jaguar AJ30 engines also use Passive COPs. You can normally tell they are passive coils by them only having two connections. An ignition switched live feed and a ground trigger. When grounded, current flows through energizing them, and when the circuit is opened, the spark occurs. The ME221 and ME442 both feature the IGBT drivers required to energise these type of coils. Most of the Plug-Ins are Active/TTL type only please refer to their manuals.


The below example shows wiring for four cylinders, of course you could use all coil outputs giving 8 channels in total for 8-cylinder applications.


The COPs pictured are Jaguar AJ30 Type (Affordable and easy to use). They have 2 pins - polarity on the COPS should be noted as one pin on the COPs is usually labelled B+ for example.