[Dilligaf]

am after some help please?

I recently brought the 93 WRX and to me its running rough, smells like alot of unburnt fuel and its very hesitant on boost. It has a knock link fitted and thats showing green.

I stripped the car down today to remove the horrible toad alarm and also check everything over and replace the dash. I found that the ECU has a little metal toggle switch sticking out the side and a label with this:

dnb Scoobyecu

and the two settings for the switch, one saying oem, the other scoobyecu.

I have searched for this and not found anything and it seems to run the same on either switch setting. I am after help knowing what map has been put on the ecu or by who? would I be best gettng a stock ECU and then a fresh remap?

Thanks in advanced!