Bad SR ECU??

Ok, Im having a guy install a redtop sr20 in my 93 s13. And trying to figure out if the ecu is bad. This is the info that I got from him that is going on.

(direct quote from the thread he posted on zilvia)

"I'm doing a swap for a local dude on his S13 and I'm not getting any power to the ECU.

I am familiar enough with the nissan ECU's to know that there is a constant power wire (PIN 4 - Red/Black strip) that should get constant power. When the ignition it turned on, it will send a signal to the ECCS (ECU/MAIN) relay to power it on, which then opens up power to the ECU allowing it to turn on.

Currently, that is not happening with the SR20 ECU i was supplied.

I took the ECU out of the car and gave the ECU power wire (PIN 47 i believe - Black/White Stripe) power and grounded the ECU on my bench and it turned on, so I know the ECU does have the ability to turn on.

I noticed that when the ECU is in the car and I turn the ignition is on, Pin 4 gets constant power, no matter if the ignition is on OR off.

I swapped the KA ecu back into the car, and everything operates normally. The fuel pump turns on, the ecu turns on, etc. I also monitored the behavior of Pin 4 and it gets constant voltage when the car is off, and as soon as the ignition is turned on, the power to that wire disappears.

I am leading towards something being bad in the ECU, considering with the KA ECU in the car, it acts normally as it should."

Any help is greatly appreciated!!

Test with known good SR ECU to confirm.

Yeah, I think theres only one other guy with an sr around here and I don't even know him. Does this sound like the whole thing might be bad?

swap ecus with some one to help diagnose, i had this situation last... all said and done my ecu was fried.