Problem with s300

[TypeR89]

So i just bought a new s300 i chipped my ecu and installed the s300. Car started fine,rev'd up fine and idle fine.
I was sitting in in my car had my laptop plugged in learning the system when my car shut off and wouldn't start back up.So i replaced that ecu with a chipped p28 and everything was running good again.
I open my hondata installed ecu and found the common blown capacitors. I replaced them reinstalled the ecu and still would not run.
So i removed the s300 from the ecu and cut J1 and the car started up and ran fine.
Both green lights are on when the ignition is turned on, and i have no issues changing the calibration.
It seams like i have a faulty s300.But i'am no expert so any help would be great before i send back for repairs.

Serial # 34961
software-2.5.0.0
calibration-2001 itr
1989 civic,b18cr engine
ECU-p05

Thank you

[Spunkster]

You should try the s300 in a different ECU as something in that ECU may still be damaged and is not fully powering up the s300 fully.

[TypeR89]

So what are the chances that the s300 is damaged?
Don't want to buy a new ecu if it could be the s300.

[Spunkster]

Try and find someone locally that has an s300 you can test your s300 in their ECU. You might also try contacting your local dealer as they may have a ECU you can test this in.