Fan A/C Pressure

[Chevy366]

Say , RonC how do you like the COS3 and SD tune ?
EFILive makes it simple .

[RonC]

I really like it and don't want to go back. I have played with it a lot and have been able to get it where I wanted it. It has been very good and dependable except for the lean startup A00008 problem which they have now fixed. I have got a decent VE table and have setup B3647 for lean cruise on the road and max power when needed. It has been very smooth, runs good, gets 17+ MPG on the road empty and 14+ average driving. Thats around a 2 MPG increase with my old man style driving. I REALLY like EFILive.

[Chevy366]

I really like it and don't want to go back. I have played with it a lot and have been able to get it where I wanted it. It has been very good and dependable except for the lean startup A00008 problem which they have now fixed. I have got a decent VE table and have setup B3647 for lean cruise on the road and max power when needed. It has been very smooth, runs good, gets 17+ MPG on the road empty and 14+ average driving. Thats around a 2 MPG increase with my old man style driving. I REALLY like EFILive.

I have to say DITTO there , I did the COS3 (before fix and re-flashed with fixed), AutoVE and SD and as you said liked the results , I did see a increase in fuel millage as well .
Was just curious if anyone else had the same good results in a HD 6.0L as well.