barely running after calibration only flash

[PSI]

Hi , its a lq4 6.0 with ls3 heads, intake , 42 lb ls3 injectors, throttle body, ls1b controller, return style fuel system . I am running a 3bar COS , its a N/A setup . Everything was running good , I was dialing in the VE . Went for a drive , pulled over did a calibration only flash . It barely started , idles really rough for 10 secs and dies. Did a full flash no luck . Fuel pressure is good , everything checks out ok . Don't know where to go from here . I am attaching my file , any help would be appreciated .

[joecar]

Post the previous running ctz.

[joecar]

Try doing another cal flash.

[joecar]

Also, side note (after you get it running):
- if you're running boost, you have too much HO spark timing.
- you have insufficient PE fuel (even for NA)...!!!

[PSI]

Thanks for the reply joecar . Its the fuel pump or the regulator most probably the pump :( . Hooked up a gauge goes to 55 psi and then settles at 20 psi weird . Its a new walbro 255 pump with maybe 8 hours on it . Was a coincidence that it went out right after I flashed the computer . Not running boost hence the high timing . Thanks for looking through the tune , I will definitely bump up the PE values .