The other day I went to go tune a boosted truck and saw that my V2 is reading 0v on all 4 AD inputs when I tried them all with a NGK AFX. I know my AFX is working because it is displaying the AFR and is fluctuating properly. Are there any new bugs in the software releases or is my unit defective? Last time I tuned with it I had no issues, but that was a while back.