Idle Issues

To start off, I posted this awhile back with no luck.

Here is what happened:
I tuned it but had not taken it past 4000 rpm yet. Was driving and it started to surge a bit and then at idle it started to lean out. Got it home and cannot find the issue. Under throttle it does not lean out, only at idle. I added some new parts and still cannot find it. Could someone please look at my log files and my tune and offer any suggestions? I noticed it is not recording my LTFT or my STFT. What could be causing this? Also this tune is a new tune I just finished so I have not done partial throttle tuning yet but this is currently loaded on my car.

Could the MAF sensor have gone bad?
**EDIT** Looking back at an old log file it shows my LTFT and STFT were being logged and now they are not. This can be seen in "oldLog"

Specs:
2013 LS3 Camaro M6 (Manual)
Huron Speed Single Turbo kit
95lb/hr (1000cc) FIC fuel injectors
ZL1 Fuel Pump
ZR1 Map Sensor
New O2 Sensors
No Cats

The MAF does read low when it starts going lean. It drops as low as 4-5 g/sec. Does your BOV open at an idle? Any vacuum leaks, or air leaks between the MAF and TB?

Quote:

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Originally Posted by kevin87turbot

The MAF does read low when it starts going lean. It drops as low as 4-5 g/sec. Does your BOV open at an idle? Any vacuum leaks, or air leaks between the MAF and TB?

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That's a good question about the BOV.. I'll check that out. As far as vacuum or air leaks, I cant seem to find any. I'll double check that too.
I'm also not getting any CELs.

Quote:

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Originally Posted by kevin87turbot

The MAF does read low when it starts going lean. It drops as low as 4-5 g/sec. Does your BOV open at an idle? Any vacuum leaks, or air leaks between the MAF and TB?

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Update for future readers--- Tried a new MAF sensor and that didn't fix it. I checked my BOV and the O-ring was broken..? idk how that happened. But I replaced it and the issue hasn't happened since. Just now having issues with getting my partial throttle tune dialed in.