383 TPI with CNP / Distributorless conversion - help with the tune

[MR HSPWR]

I have a 1987 Trans Am with the following:

(from over 15 years ago)
383 stroker IIRC its just under 10:1
Comp Cams 272 / 272 .484
30lb/hr injectors
1.5 roller rockers


(In the last few weeks)
New fuel pump. Fuel pressure is near 60 PSI (for the few seconds it will run). It has a EFI connection 24x conversion timing cover and wheel, it has been converted to CNP / Distributor-less ignition. It runs a early 2000's DBC ECM

I cannot get it to stay running - It will light right off and then it sort of peters out after a few seconds, VATS is disabled. Sometimes it will restart right away, sometimes it won't. There are no engine management codes, just stuff I have not turned off yet (EVAP, EGR, etc.)

I don't have enough experience tuning something this far off the grid -

Any input would be greatly appreciate!

[edcmat-l1]

Pid list isn't helpful at all.

Mod list is almost as bad.

As a quick test you can cut your injector low rate in half and see if it runs. But that's not meant to fix anything, just to test.

The fix is going to be, start with correct injector data for whatever "30s" you have, and then dialing in both VE and MAF.

[SiriusC1024]

There's a lot of stuff you'll have to adjust in the tune. To me it looks like a bad fuel pump. Yes, I read what you said about holding 60psi. Are you 100% sure that it was 60psi the entire time and not just startup? Gauge on the rail?