S-AFC Dec Air setting.

[JimX]

Mark from Hills Motorsport forgot to fully set my S-AFC to counter the stalling effect of my bov, so I had a play around with it myself. He had set the Ne1 and Ne2 both to 10%, but forgot the Thr setting, which meant that it doesn't do anything at all.

So according to the manual I set the Thr to below the Ne1 and Ne2 settings. I tried 5% first, which seemed like a good figure to start on, but it didn't seem to do very much. I then tried setting it to 8%, and increased the Ne2 setting to 12% just because I figured there were 2 settings there for a reason, and this has definitely made an improvement. The idle now stays above 500rpm when I take my foot off the accelerator, and so far I haven't stalled it or even almost stalled.

However, since I don't really know what I'm doing, I don't know if these are the optimal values. What should I have them set to, and what are the consequences of setting them too high?

[Guest INASNT]

My advice is give up, as the dec air function does shi*t all. It work ok initially but when u cold start it the next day the idle is all screwed.!!

[JimX]

You know, I think you're right But only after the engine warmed up the next day. Lucky I'm pretty good at catching it before it stalls.