Need help with no start issue

[andysc3]

Update. Tuning has been kinda slow. Only get 1-2 logs a day. Usually on my way to/from work. The ve table under 3k rpm is looking good. But was having issues with the transmission. Was looking at the t43 shift tables whike on my lunch brake when I finally noticed I was using the default kph. Converted it over to mph. We'll see how it does on the drive home

[andysc3]

is there a way to better control cold fueling? when its 15 or below outside its very hard to start. takes a few tries. then once the engine starts and rpms settle the afrs will start climb to around 15-16 until the coolant get to around 190 where it goes down to 14.7. ive been loging maf g/s and hz. At idle im seeing 11-12g/s. should I increase my min idle airflow to match what the maf is reporting?
also tried a wot run on my way home from work. was doing good until about 6000rpm when it fell flat on its face and the afrs climbed to about 13. Looking through my rev limiters and seems that I overlooked B5212 rev limiter based on oil temp. fixed that and will try again later.

[andysc3]

Drivability tuning is going well. Got the courage up to do a short wot run. 1st gear was a bit strange with it fluctuating. And it reved higher than what I was trying to command the shift at. Wanting it to shift at 6500 and it hit the rev limiter of 6600. After it did shift it pulled real strong in 2nd, but was going very lean on the top end. And for some reason my wideband randomly shows 655 which throws off a portion of my ben map. Ive attached the updated tunes and the log

[andysc3]

Appears that I'm getting some wheel spin in 1st. it's strange because its AWD but 22s on cold pavement probably isn't helping. I lowered the commanded shift rpm and mph and it helped some. would lowering the shift timing help speed up the shifts? it's still going lean on the top end. It's hard to find a stretch of road for testing that isn't covered by ice or other vehicles. I remember reading something back when I was tuning my procharged lq4 about logging some parameters that will simulate the torque and hp curves, but I can't remember what the parameters were. looks like the airflow gm/cyl looks very close to the TRQENG. What about the hp?

[joecar]

andysc3, I have been reading along, thanks for posting.

[joecar]

going lean at the top:
adjust maf table here to see if it changes.

[andysc3]

i have the maf disabled. It's been well below zero here the past week. won't be able to do any more WOT tuning until around late March or April. I am having an issue where it wants to die after its warmed up and I come to a stop. Rpms will drop and it will surge to about 1k rpm then drop and dies.

[andysc3]

Was looking at the min idle airflow and it looked like it was too high. Avg 10g at idle rpm. Lowered it to 8g and it's idling much better when warmed up.

[andysc3]

I've got the VVE dialed in pretty good. Finally started working on the MAF tuning. hasn't needed much adjustment. Question on where to have the WOT shift points set to. right now, I have it commanding the shift at 6400rpm and 68mph on the 2-3 shift but it's not shifting until 6600 and 70mph. and is this too high? cam is a btr 218/224 .55/.55 110lsa. g/cyl start around .98-1 and at 6000rpm its drops to .84 and at 6600 it's at .7. My truck is AWD and won't fit on any local dynos. Map stays right at 91-92 kpa. have afr dialed in starting at 12.5 and leaning to 12.8 at the shift and 24* timing. No knock besides a random burst knock I sometimes get while at a steady cruise on the highway.

[andysc3]

Ran I to an issue with the maf tuning. I've reversed what I did to disable the maf. But its sluggish and I'm getting a p0101 when I try to accelerate.