I have been combing through and reading everything I can, but for the life of me, can not get an AFR to read in the Tunerstudio.
The car was running great prior to installing the MS3pro pnp. The car now starts, and then rev hunts until it dies out. I looked at the datalogging and tunerstudio, and there is 0 reading for the AFR. The AEM gauge is reading AFR, but seems to be not sending the information to the MS3 or the MS3 doesn't know what to do with the signal.

Installed an AEM x series 30-0300 wide band eugo.
GREEN/BLACK wire to CANL
WHITE/BLACK wire to CANH
Power and ground wired to switched power (door buzzer and ground).

I have also wired in a 120ohm resister at the end of the CAN Bus (gauge side)
I have attached the current tune (built off the 90-93 basemap) as well as a couple of data logs.

The GM IAT sensor was installed half way through setting up the MS3.
Any insight would be GREATLY appreciated... Theres something I am missing, I just cant place it.

 

It looks like you have the MS set up like DIYautotune suggests.
According to google, the AEM gauge sends out data on CAN continously. You could throw a meter on the CAN bus (on AC volts) and see if you
have CAN bus activity. Also double check that the signal is getting back to the correct pins on the cpu.

Looking at your tune, shows some other issues which is why the engine does not continue to run.
1. Your MAT reading changes when you are cranking. Maybe a signal ground is not properly connected?
2. Your MAP signal should be going to 95-100 when you are not cranking. Right now it is only going to 85. Not sure what is causing that. Do you have the correct sensor configured?
3 It does not seem like you are giving the engine enough fuel to run. I see you have 265cc injectors, and the PW's are much lower than mine. What AFR is the wideband reporting?
4. You may wish to disable fuel enrichment based on MAP, until you have the engine running properly.

 

^ what he said

If MAP is not reading around a hundred when car is off, you have the wrong map sensor selected in the menu and it will never run. 85 isn't right