I'm troubleshooting an issue where my MK3 gti vr6 is cutting spark on the rear 3 plugs between about 1800-4000 RPM. The car isn't throwing codes, other than sai and evap on occasion. I want to track/log through the ECU to see what the injectors, as well as ignition is seeing. Can someone point me in the right direction on which banks to log?
I've replace a ton of parts, but to no avail.