ECMlink 1G Sudden won't run or idle

[Gumbob3]

Hello! I am stumped trying to diagnose a problem on my 90 GSX. I installed a new trans and put about 25 miles on the car since, it was running great. I was about to capture a driving log to send to my tuner (as my tune wasn't 100% finished when I blew my last trans) when I shut the car off and came back out a few minutes later. I noticed my battery was weak, around 11-11.5V. It was enough to barely crank over, but not quite start. I plugged in my Noco jump pack and tried to start it. Wouldn't start. It was acting like it didn't have any fuel. Fast forward a few days later, and it will now try to start but is impossible to keep it running for more than 5-10 seconds. I'm running ECMLink V3. Here is a list of things I have checked:

Fully charged battery, no boost or vacuum leaks, verified timing, strong spark on all 4 cylinders and fresh plugs, good compression, professionally cleaned and tested fuel injectors (FIC 1200cc), verified fuel injector wiring and injector functionality (while injectors installed in rail and cranking), no DTC codes, 43-45psi fuel pressure at the regulator, fresh tank of 93.

I am wondering why my Omni 4 bar map is reading -0.7 -inHg/+psi in ECMLink. Is this normal? Shouldn't it be at atmospheric pressure when the car is off? Around 30inHg as the baro reads? Any help is appreciated. Will attach a log to this thread. Thank you!

 

[Gumbob3]

I cannot, for the life of me, find out where to attach a log file here. Could this be because I am a probationary member?

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[AWD-Tony]

Save the log to your desktop. Select add photo and look for the log

 

[Gumbob3]

Got it, thanks! Here is the log.

 

[AWD-Tony]

Open up the ECU and see if you notice anything. Here's what I noticed
Battery/charging seems weak as it never gets over 12.5 volts
Map sensor reading is off and if you look at airflowperrev, it's all over the place. Many of us have had issues with Omni 4 bars. Do you know anyone with a map sensor you can swap?

11.3 - Map sensor reading is a little off.

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11.5 - 316 cts, 61* timing and map sensor all of the sudden reads -28 vacuum

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11.53 - 8.5v and Map sensor changes.

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[Gumbob3]

Open up the ECU and see if you notice anything. Here's what I noticed
Battery/charging seems weak as it never gets over 12.5 volts
Map sensor reading is off and if you look at airflowperrev, it's all over the place. Many of us have had issues with Omni 4 bars. Do you know anyone with a map sensor you can swap?

11.3 - Map sensor reading is a little off.

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11.5 - 316 cts, 61* timing and map sensor all of the sudden reads -28 vacuum

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11.53 - 8.5v and Map sensor changes.

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I do not have anyone with a map sensor I can try out. Looks like I'll have to order a new one. Any recommendations for one or should I get another Omni 4 bar since that was working fine until now?