speed density / MAF switching ?

[Boost]

Vehicle is a daily driven cammed LS1. I have attached associated tune and logs.

Today I verified what I suspected all along. Due to the presence of a P0103, MAF was ignored and default to speed density VE table. I know that's pretty obvious, however until today I did not have the chance to confirm that in fact the MAF was being entirely ignored .

The problem is that the vehicle behaves terribly during cruise and light throttle and sputters / fouls the plugs. WOT and top end pulls make satisfactory power.

When I force the MAF (by not reporting P0103) drivability and cruising are MUCH improved, but there is absolutely no power on WOT / top end pulls.

I have a simple question, however dumb it may be to you I need to ask it so please help if you can / are willing and move on if not. Why is it not switching to the VE table and how can I make it do so? I recall reading somewhere that I can command it to switch loops.

Disclaimer: while some may feel like they need to say this anyway, yes the vehicle needs more tuning, no I did not do it, no I am not charging, yes the MAF could be adjusted, yes the VE could be adjusted and perhaps this is a simple issue.

But I'm stupid and ignorant if that makes it better and really just want to learn and help.

Why does this car run like shit on WOT with MAF and like shit at all other times VE?

Thanks so much in advance and please be kind I'm in a bad f@#&%ng mood lol.

[Boost]

So I'm just going to recommend that he gets it tuned MAFless. No replies, maybe my post betrayed how uncomfortable I felt asking a question.

[2xLS1]

There is some kind of problem with the MAP sensor. Figure out what it is and fix that first. Good working MAP sensor it critical for SD tuning.

[1266318172]

MAP sensor seems to be waaaay off. Check it.

[Boost]

There is some kind of problem with the MAP sensor. Figure out what it is and fix that first. Good working MAP sensor it critical for SD tuning.

Thank you so much. As simple as that was to see in the datalog, you made me revisit it instead of focusing on the MAF and we solved the problem. Thank you for helping out tremendously, your posts are always informative.

[Boost]

MAP sensor seems to be waaaay off. Check it.

I appreciate your input as well.