[Engine surging after it warms up...undriveable]

That's what TAC said as well.  Attached is the trigger scope.  Just in case I replace the cam sensor with a known good one, issue is still there.

I would think that if it was a cam/crank sensor or wiring that it would do it right away?  Why is it that it only does it once its warmed up?

I also noticed that the fans are constantly running. Not sure if they have been rigged to do so.

 

Thank you.

[Engine surging after it warms up...undriveable]

I create a log and sent it to TAC as well.  Attached is the log. If anyone has any insight, please post.

Thank you

Log 2019-01-17 1;00;22 pm.llg

[Engine surging after it warms up...undriveable]

Good morning,

I'm helping a friend with his car.  The car was sitting for about 7 months due to a broken transmission.

I replaced the transmission and got the car running again. 

The car starts fine, but after it warms up, the engine starts surging up/down and it's undriveable.  Once the car cools down and we try again, the same process happens.

I also noticed that when placing the key to the ON position, the fans will run continuously. 

The car is a Subaru 98 2.5rs with a JDM EJ20 something swap from the older pre-200 STI.

Any help would be greatly appreciated.

 

Thank you.