Torque Dip

[2500HD8.1]

Car is a 2013 Charger 3.6, 8 speed AWD. Was wondering if anyone might have a suggestion on what could be causing a dip in airflow, fuel, and torque, around 3400 RPM, always at same spot during WOT run. I can feel it as it happens. Added picture of log showing the dip. It does it with stock tune and modified tune. I am thinking it may be some sort of torque management. I have tried adjusting cams and throttle settings in the affected area with no change. Have also turned off any tq management, I could find, that I thought might affect fuel or airflow. Log doesn't show any tq management being applied, but some of these things seem to be using some hidden management sometimes.

[edcmat-l1]

How about posting an actual data log instead of a picture of one???

[3dodgechick]

but some of these things seem to be using some hidden management sometimes.

Bingo , and some of it is also Intake manifold air boundary issue

[2500HD8.1]

Added log file to original post.

[duster360]

Looks like the TCC is locking up and maybe the AWD

Turn off the TCC in 1st and log all the AWD pids and see what happens.

[2500HD8.1]

Looks like the TCC is locking up and maybe the AWD

Turn off the TCC in 1st and log all the AWD pids and see what happens.

Thanks for the reply. Didn't even see that the convertor was coming in. That's why it's a good idea to have multiple eyes check over things. I have disabled convertor and added AWD pids. Will give it a try and see what happens, hopefully this afternoon, depending on weather.

[2500HD8.1]

Turning off converter in first gear made no difference. Stays in 2WD also. The hunt continues.

[duster360]

Turning off converter in first gear made no difference. Stays in 2WD also. The hunt continues.

Lets see that new log.(you need to be logging Air Charge)

Interestingly the Driver Demand Torque is taking a dip too.

[2500HD8.1]

Log with convertor off.

[2500HD8.1]

Lets see that new log.(you need to be logging Air Charge)

Interestingly the Driver Demand Torque is taking a dip too.

When I set up channels I had labeled Cyl Airmass as Aircharge, which I now see was wrong. Added Aircharge. Thanks for all your help.

[2500HD8.1]

Cylinder airmass and Aircharge are measuring the same. I also tried making some changes to the driver demand settings to see if it would have any impact on the issue, it did not affect problem at all.

[ghezzmo]

Curious to see the end result