Thumpn

3bar SD setup, no start, what am I missing?

I started over with my stock ecm tune on my ecm, converted it to 3 bar sd os , then did a write entire to the ecm, i then changed things like turning off the MAf, turned off LTFT and STFT cause i have the scanner setup for AFR error scanning with the wideband. and I set my fuel pressure reg ( aeromotive boost ref reg) to 58lbs, and the did the calculations for the Injector data as well as called a few that have the same injectors just to make sure i set the data up right.

I did a write calibration to ecm, turned scanner on reset LT fuel trim, all i get is the engine starts then dies no idle. i tried to start it multiple time all with the same result. What am I missing in the software ? any help would be much appreciated, I have been trying to get this thing to run for over 2mo now and the only time i can get it to start and run is to crank up the main VE up to over 3x the org value by that point the injectors are maxing out and all i get when I try to drive is a consistent shudder like it is fuel cut or miss fire
i am attaching a copy of my tune and the scan of no start.

Setup as follows:
6.0 forged bottom end , dish pistons 7:1 comp
6.2 stock truck heads
78/75 turbo
80lb deka injectors
twin 340l intank fuel pumps
2010 zr1 cam 211/230 @ .050 valve lift and .558/.552 lift
LS2 cam sensor in timing cover
Ict billet intake w/102 mm Tb
napa crb219481 3 bar map sensor ( gm 12223861 alt replacement)
wastegate w/14lb spring

brandon6.0

iTrader: (32)

Did u change the ve table? When u swap over to a diff OS rather 2bar or 3bar u have to modifie the ve table.

Thumpn

i did copy it over and modified for 2 and 3 bar

brandon6.0

iTrader: (32)

tune looks as if it needs to be tuned. U still have a lot of things that need changing for it to run correctly. Did it run before the OS upgrade?

Thumpn

it has not run since the swap , it had a 5.3 n/a stock and it ran great

subeone

iTrader: (5)

Try this and see if it works.

Thumpn

thnks ill give it a try in the morning

Thumpn

tryed it, and still no go . it still fires then dies

Thumpn

is there a setting in the idle settings that i need to adjust?

gametech

iTrader: (1)

Starting and then dying sounds like a VATS issue.

truckdoug

iTrader: (25)

I had all sorts of shitty idle issues which the 102 mm china throttle body. And then even running halfway decent you lose so much throttle resolution...threw that bitch right in the trash. Srock TB all day erry day. Getting effective idle area and base running airflow dialed is your next task. Do whatever you gotta do to get it to fire and idle around stoich. lock the timing at 20º after it fires and gets up to 100ºF or so.

I'm also concerned about 7:1 static compression....whats the cranking compression like?

Thumpn

I got it to run but I had to crank up the VE 150% across the board to run, I have it idleing awesome now and I am just running threw some tuning now, the only issue I am having is getting my LC-2 wB to get the guage and the hp tuners to read the same, the issue is the richer the guage shows the further off hpt gets from the guage reading, so with that it is causeing the AFR error% to be incorect data

truckdoug

iTrader: (25)

word. I have had BS problems with innovate products...damn near all of them. Floating ground or something like that. Someone comes to me with one I switch it out for a PLX.

gametech

iTrader: (1)

My experience has been that with proper wiring, Innovative products work well. That being said, the tiniest hint of a bad ground or a positive voltage feedback will fry the hell out of their delicate circuitry.