I give up, did everything, new ground, new power, my afr is pretty much dead on to commanded. But now my AFR log is very jagged, bounces from 13-16AFR. Sometimes its perfectly smooth, most the time it is jagged and bouncing like crazy completely throwing off my tune.
Just happened again today. Here is a short scan log of the car no running, fully hot, ignition on. This is just plain weird. The LC1 Logworks shows the same exact thing.
Anyone have anything like this happen before??