[Diy_efi] Hesitation, backfiring, jumpy blues :-(

[93 Formula]

Anyone out there care to offer any other ideas of where to look for my 
problematic car?
Its been years and I haven't been able to drive it.
I have both diacom runs and datamaster runs.
If anyone wants to take a look, let me know and I'd be glad to email them.
I have run VE-MAster 4 times on datamaster data with not enough change to 
make it go away yet.
I see some things I don't like in the data but don't what to make of all of 
it.
Also - could the egr effect anything?  I don't have one hooked up anymore. 
Should I turn something off or change the on/off values in the ecm? (I've 
put this back to stock now)

Here are the symptoms -
1. Doesn't want to keep a "running" idle -aka wants to die when you put in 
gear or turn on the A/C...

2. When driving it - open or closed loop - from a stop to anywhere in the 
part throttle range, there is always like a jerk of the car like it wants to 
die (I thought it was going lean) and then it surges forward

3. the rpm's seem to have the jitters looking at the data, the  LTs seem 
wrong - not near 128 usually.

4. the only time it seems to run ok is when I mash it but even then 
something doesnt sound right.
  I also noticed that one LT was stuck at 130 instead of 128 - seemed weird 
if using WOT
I also noticed LT counts hanging around 108-114 range for a 9 second period 
when I let my foot off the gas after a 10% TPS yikes.

5. popping in the exhaust - especially when letting of the throttle but even 
at part throttle driving this happens.

6. still starts hard - long crank and then wants to die for the first 10 
seconds unless I keep in the gas - reminds me more of my 73 Charger before I 
upgraded the ignition.

What I've done... (besides aging 30 years in 3)
-------------------------
changed programming like no tomorrow, went back to stock programming and 
started over, tried VE master 4 times - Is this something you should have to 
run a lot before it gets right?
chk'd or changed coil, coil wires, spark plugs - although that was a year a 
go and they may be "fouled from too rich tests"  Would these really need 
changing or would just a good hot romp burn em off? (which I've doe a few 
times)

1. I've helped the idle problem by adjusting the throttle stop out some to 
raise the idle speed.
    I tried raising #s in the ecm but it didn't help.

2. usually the only way to keep it moving when it does this is to feather 
the throttle until it finally gets going.

3-4. it does better to touch it at say 20% rather than a 5-10% throttle.
I noticed in the data that the tps changes even when I don't have my foot on 
the throttle ???

I know there is some exhaust leak in the driverside Collector pipe since it 
never was a perfect fit
I don't know if that is enough to cause all of these problems though.
I did have problems with it starting and had to replace the battery - 
thought the pcm was dead, but apparently it was just my proms so I went back 
to my DOS program to make sure and it works but it
I run 30# f*rd injectors in it now and they are programmed according to the 
formula someone posted here a while back - I think its is like 31.xx as the 
constant.

Jeff  http://FindFastCars.com 93 Formula
Mods: 355 forged for NOS, LT4 HotTop, 58TB, SLP Cnvrtr, 3.73s, 
Mufflex/Spintech 4" exhaust, Hooker LTs, 300+ Ign, Injctrs, MSD Adj Win Sw & 
3 Ign Ret, K&N CAI, Diacom, CATSTuner...