I just had Unichip installed and tuned in conjuntion to my AFCII already installed prior to Unichip. The shop set the AFC back to zero with no air and fuel adjustments. Do you guys think that even with the AFC set to zero would affect the performance of the Unichip? Or should i just have the AFC removed completely. I'm asking because of my prior post regarding my dyno graph of gaining only 2whp after header and Unichip tune. Any comments would be appreciated.

 

I would remove the SAFC all together. I thnk the afc would be a problem if it was after the unichip in the series(meaning unichip=>SAFC=>ECU). In this scenario the SAFC would be distorting the alteration to maf sensor signal that was made by the unichip.

 

Even with the setting at zero? hm.....i will have the AFC removed this weekend.

 

+1 on removing the AFCII

 

That is true but you still need to remove the AFC2. Could you post a graph of your AFR from your Dyno sheet

 

Here....https://my350z.com/forum/northern-california/265353-unichip-dyno.html
The top two are dyno before headers and unichip a couple months ago. The last three bottom graphs are the recent dyno after unichip and headers. Its kind of blurry, but the last graph that shows the AF ratio is actually 12.96 then tapers off to 13.01