Hi! I discovered an issue where I assume the ecu power cuts on wot in my evo 3. I'm assuming its something in the stock harness but I haven't gone through it yet so i might be wrong.
Now this issue doesn't show up until the car has been running for a few minutes. The car works just fine for about ~10 minutes after starting the engine, and it also works fine after restarting the car mid run. I logged some data and I had a friend ride with me while it was happening and it's not showing any fault codes so I have no idea where to start to be honest. As I mentioned earlier it probably has something to do with the stock harness being 20 years old but you never know.
The engine is good for about 500hp and it runs great when it wants to. Has someone ever encountered this before? Ill attatch the tune and the log where the power cut or whatever it is happens. starts at ~6:20 min into the log

Tune and logs:
https://www.dropbox.com/sh/9k9ga1ejm1ifhr6/AADC93Cv3KZ_wVIGa_qwjSL8a?dl=0

Specs:
CP pistons
Eagle rods
Bc valve springs
BC 272 cam
Fic injectors 1200cc
New oil pump and water pump
Athena headgasket
Arp bolts
Aeromotive fpr
Tial 44mm wg
Jrm bov (woosh)
Acl bearings
Garett 3076bbr
Link g4 ecu

Cheers

 

what is it actually doing?

 

When it happens it starts to violently jerk at about 5k rpm and i lose all power.
It does the same on wot and down to about 50% tp. When the tp is on the lower side its not as violent.

It can go into low boost but only if im lightly pressing down on the pedal.

To clarify this only happens after the car has been running for a while.

 

You may want to see if you can export to .CSV on the logs, I don't have software for llg files.

 

I added the .csv file to the dropbox link, i cut it up a little bit. after the first pull it starts acting up.

https://www.dropbox.com/sh/9k9ga1ejm...a_qwjSL8a?dl=0