I see small amounts of FLKC, usually goes from -1.05 to -0.7 to -0.35 then gone. A few start at -2.11 but rare. And all at very low loads ( less then 1.0 g/rev) and in vac. always negitive psi. I guess this is triggered because the Fine Learning ranges start at .60?, what do you make of these?, can I just increase the FLKC to start at 1.0g/rev instead.?
Can that be real knock at those ranges? This see this when logging normal driving around town and freeway.
Thx

yes it could be real knock. at the same time, low load knock isn't too dangerous but you can try to eliminate it. try removing a bit of timing in those areas, try to use MickeyD's sheet knock counter sheet. it takes giant amounts of data and crunches it up to show you where your knock is occurring. if you see a trend, it could be real knock. I was getting some negative fine learning correction at highway cruise, it turned out to be a result of my rescaling the load columns and the low end got a bit tweaked.

do you have any rattling items in the engine bay?

I had this 'exact' same issue on a car I recently tuned. The car would have .70 - 1.40 of FLKC at idle. It turns out that the car had a bad external wastegate at idle and was leaking a TON of air. So, the idle fuel mixture was all over the place, but under cruise and boost the car was perfect.

After the customer fixed the EWG I was able to get the idle AFRs in check and reduce the idle knock. Also, check to make sure there are no mickey mouse mods on the car as well.

Figured I should keep this in one spot...

http://www.romraider.com/forum/topic2902.html

I was getting a lot of the same crap. After the swap in my car I guess we forgot to swap pumps. Turned out the RS pump wasnt nearly strong enough. I swapped to a Walbro and all the lil knocks went away. Also able to run stronger timing now as well :)