Instead of using OEM ignition systems, or wasted spark coil packs, Gen2 ME Plug-Ins and ME442 Wire-Ins allow the use of TTL/Active Triggered Coil-On-Plug upgrades.


COPs by definition can be very electrically noisy. When replacing OEM wiring, be sure to ground the COPs to the cylinder head using a suitable eyelet. Failure to do so can cause USB communication issues. You can also install a 10,000uF capacitor across the 12V supply to the COPs and the ground near the COP units to further add noise immunity. This should connect to the Ignition supply and to ground as close to the COPs units as possible.


Most opt to run the ignition sequentially, that is, to fire each cop once per 720* Engine cycle. This requires the correct settings in the Ignition Driver (Fully Sequential) as well as assigning the correct ignition channels in the Output Settings.


The Ignition Trigger Pins can be found in the relevant products wiring diagram. Note the Plug-Ins usually use the original trigger lines for the OEM coils so new wiring can be ran from the OEM pins, and then additional trigger lines for coils 3 and 4 will come from the Auxiliary connector. Plug-In specific information can be found here.

Common Coil Pin Outs

VAG/Audi R8 COPs


(Note the pin out is for the "long/normal" VAG Coil. The Shorter type has a different pinout


LONG/NORMAL COIL

Pin 1 - 12V Power

Pin 2 - Signal Ground (Cyl Head)

Pin 3 - Trigger Signal

Pin 4 - Power Ground (Cyl Head)


SHORT VAG COIL

Pin 1 - Ground (Cyl Head)

Pin 2 - Ground (Cyl Head)

Pin 3 - 12V Power

Pin 4 - Trigger Signal


Toyota/Denso COPs



Pin 1 - Power Ground

Pin 2  - Trigger Signal

Pin 3 - Tacho Pulse

Pin 4 - 12V Power