his car only has one coil.

Blocking off egr and having Solomon tune it out cured some of the stutter and a cracked insulator on one of the 6 month old plugs took care of the rest. I guess we dropped it a few too many times when they were being put in.

Anyway, my car was running rich and Solomon cured that through data logging and customizing the tune and it runs better than ever.

 

coil wires are getting 8 times as much use as the plugs and they arc frequently onto lots of nearby grouds. Put a new one in and it may solve the problem. This seems like an electrical issue not fuel.