I don't know what tables to play with to correct my issue. When the truck is cold, ie..been sitting overnight or all day at work, if I try to take off from a stop sign too quick it stumbles really bad and then launches hard. I took a quick log and it seems to go super lean for a second and then it's OK. Like 19.X afr lean.
Attached (hopefully) is a log and my tune. I tried to do the launches at the 100 marks on the frame counter. I think 1400 is the first one. Frames 1405-1415 show what I am talking about. I did several more launches. Anybody see a pattern and what can I tweak to sort this out?
Thanks,
Chris

 

Take a look at B3605. You'll want to increase it across the board a bit for temps below 60*C / 140*F.

 

hey! i've had that same problem since i put the radix on. When i asked my tuner about it I was told "yeah, that's a common problem with this blower...".

 

What size increases should I make to see if it gets better? .1 at a time?

 

That would be a bit too big of a change.

Try this table that I'm attaching here.

 

Justin,

I inserted your table (after finally figuring out it was in kpa)
I will try it tomorrow morning once the truck is cold.

 

NEVER LET THE TRUCK GET COLD!!!! PROBLEM SOLVED

 

Mine does the same thing, I think. First start and it does a little hiccup and then rev's up before coming down to an idle.

 

Ya, mine has a higher then normal rev on a cold start. Once its warm it only jumps to like 1000 then right back down but when its cold it goes up to maybe 1500 or so. So what causes this? I would like to tune it out.

 

Mine did the idle flare thing as well. I turned the idle limit to 1,000rpm in P/N (B4613) EFI Live. Also check out B5934 and B5935.


I have attached another log from this morning. It hasn't got any better. Maybe worse. Maybe the same.... Anyway, tuners...tell me what you see.