e85

Rev. 2

bimmerlife harness and modified R8 coils installed. Everything was looking good on V12 low boost map, but then when I went back to higher boost V11 cyl 4 kept misfiring on the old .016 gapped 97968 plugs. So I installed new .018 gapped 97968 plugs, but still keep misfiring on cyl 4. I tried swapping coils and harness connectors, but still kept misfiring on cyl 4. Should I get some 97506 plugs and gap them the same and try? Or run a tank of techron cleaner through? I'm running out of ideas.

3rd gear pull to monitor for boost leaks

Night pass

Launches hard, hits 2nd gear, then feels like it lays over and eventually throws a misfire code for random cylinders. I believe this one was Cylinder #4