Problem with MAF Raw

[thearkatek]

So my car has recently been falling on it's face under boost, so I took a log and noticed the MAF Raw value jumped drastically. I'm running a 3" GM Maf through a MAF-T (just passing the value straight through). Has anyone had a similar issue? I want to try and figure out if it is a MAF problem or a MAF-T problem.

In this log file you can see it happened twice. Once at the first and once and the end.

Thx!

Oh and yes I've confirmed all of the basics. No boost leaks, and base timing is set properly.

 

[thearkatek]

Here was the issue. I had driven the car in heavy rain the week before. Enough water got sucked in through my air filter (which is in the stock location) to create a puddle in my intercooler.
When I got into enough boost/airflow to bring large quantities of water up the piping it would hit my MAF. It's a hot wire MAF, so cool water hitting it makes it think that there is a ton of airflow. This caused my ecu to dump in a ton of fuel which made it fall on it's face. I dried out the intercooler and the issue went away!